diff --git a/src/Orchard.Core.Tests/App.config b/src/Orchard.Core.Tests/App.config
index 6ada2cd01..1f3ed444a 100644
--- a/src/Orchard.Core.Tests/App.config
+++ b/src/Orchard.Core.Tests/App.config
@@ -26,6 +26,22 @@
         <assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" />
         <bindingRedirect oldVersion="0.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
 </configuration>
diff --git a/src/Orchard.Specs/App.Config b/src/Orchard.Specs/App.Config
index 417d4df69..5ce21ccba 100644
--- a/src/Orchard.Specs/App.Config
+++ b/src/Orchard.Specs/App.Config
@@ -38,6 +38,26 @@
         <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
         <bindingRedirect oldVersion="0.0.0.0-4.2.2.0" newVersion="4.2.2.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Threading.Tasks.Extensions" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.2.1.0" newVersion="4.2.1.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.1.0" newVersion="6.0.1.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
 <specFlow>
diff --git a/src/Orchard.Tests.Modules/App.config b/src/Orchard.Tests.Modules/App.config
index 4a4387430..867a6f55b 100644
--- a/src/Orchard.Tests.Modules/App.config
+++ b/src/Orchard.Tests.Modules/App.config
@@ -42,6 +42,22 @@
         <assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" />
         <bindingRedirect oldVersion="0.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
 </configuration>
diff --git a/src/Orchard.Web.Tests/app.config b/src/Orchard.Web.Tests/app.config
index 37b4df731..edbdd0906 100644
--- a/src/Orchard.Web.Tests/app.config
+++ b/src/Orchard.Web.Tests/app.config
@@ -30,6 +30,26 @@
         <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
         <bindingRedirect oldVersion="0.0.0.0-4.2.2.0" newVersion="4.2.2.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Threading.Tasks.Extensions" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.2.1.0" newVersion="4.2.1.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.1.0" newVersion="6.0.1.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
 </configuration>
diff --git a/src/Orchard.Web/Modules/Markdown/Markdown.csproj b/src/Orchard.Web/Modules/Markdown/Markdown.csproj
index 21462fb86..d5a4305cc 100644
--- a/src/Orchard.Web/Modules/Markdown/Markdown.csproj
+++ b/src/Orchard.Web/Modules/Markdown/Markdown.csproj
@@ -62,20 +62,20 @@
       <HintPath>..\..\..\packages\Microsoft.Web.Infrastructure.1.0.0.0\lib\net40\Microsoft.Web.Infrastructure.dll</HintPath>
     </Reference>
     <Reference Include="System" />
-    <Reference Include="System.Buffers, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
+    <Reference Include="System.Buffers, Version=4.0.4.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Buffers.4.6.0\lib\net462\System.Buffers.dll</HintPath>
     </Reference>
     <Reference Include="System.Configuration" />
     <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\System.Memory.4.5.4\lib\net461\System.Memory.dll</HintPath>
+    <Reference Include="System.Memory, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Memory.4.6.0\lib\net462\System.Memory.dll</HintPath>
     </Reference>
     <Reference Include="System.Numerics" />
-    <Reference Include="System.Numerics.Vectors, Version=4.1.4.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\System.Numerics.Vectors.4.5.0\lib\net46\System.Numerics.Vectors.dll</HintPath>
+    <Reference Include="System.Numerics.Vectors, Version=4.1.5.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Numerics.Vectors.4.6.0\lib\net462\System.Numerics.Vectors.dll</HintPath>
     </Reference>
-    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\System.Runtime.CompilerServices.Unsafe.4.5.3\lib\net461\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
+    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=6.0.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Runtime.CompilerServices.Unsafe.6.1.0\lib\net462\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
     </Reference>
     <Reference Include="System.Web" />
     <Reference Include="System.Web.ApplicationServices" />
@@ -231,4 +231,4 @@
       </FlavorProperties>
     </VisualStudio>
   </ProjectExtensions>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Markdown/Web.config b/src/Orchard.Web/Modules/Markdown/Web.config
index dbacb1007..5a55c6247 100644
--- a/src/Orchard.Web/Modules/Markdown/Web.config
+++ b/src/Orchard.Web/Modules/Markdown/Web.config
@@ -68,6 +68,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Markdown/packages.config b/src/Orchard.Web/Modules/Markdown/packages.config
index e11111c39..1c515e289 100644
--- a/src/Orchard.Web/Modules/Markdown/packages.config
+++ b/src/Orchard.Web/Modules/Markdown/packages.config
@@ -6,8 +6,8 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net48" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="4.1.0" targetFramework="net48" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net48" />
-  <package id="System.Buffers" version="4.5.1" targetFramework="net48" />
-  <package id="System.Memory" version="4.5.4" targetFramework="net48" />
-  <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net48" />
-  <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.3" targetFramework="net48" />
-</packages>
+  <package id="System.Buffers" version="4.6.0" targetFramework="net48" />
+  <package id="System.Memory" version="4.6.0" targetFramework="net48" />
+  <package id="System.Numerics.Vectors" version="4.6.0" targetFramework="net48" />
+  <package id="System.Runtime.CompilerServices.Unsafe" version="6.1.0" targetFramework="net48" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Blogs/Web.config b/src/Orchard.Web/Modules/Orchard.Blogs/Web.config
index dbacb1007..5a55c6247 100644
--- a/src/Orchard.Web/Modules/Orchard.Blogs/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Blogs/Web.config
@@ -68,6 +68,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.Dashboards/Web.config b/src/Orchard.Web/Modules/Orchard.Dashboards/Web.config
index a043fe512..1ca5a1a65 100644
--- a/src/Orchard.Web/Modules/Orchard.Dashboards/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Dashboards/Web.config
@@ -69,6 +69,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config b/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config
index 6467d9f0d..e218dbb69 100644
--- a/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.DesignerTools/Web.config
@@ -69,6 +69,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.DynamicForms/Web.config b/src/Orchard.Web/Modules/Orchard.DynamicForms/Web.config
index f791108ba..7b0b8d162 100644
--- a/src/Orchard.Web/Modules/Orchard.DynamicForms/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.DynamicForms/Web.config
@@ -71,6 +71,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj b/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj
index ed6a53a92..7c9775b1e 100644
--- a/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Email/Orchard.Email.csproj
@@ -55,8 +55,11 @@
     <Reference Include="BouncyCastle.Crypto, Version=1.9.0.0, Culture=neutral, PublicKeyToken=0e99375e54769942, processorArchitecture=MSIL">
       <HintPath>..\..\..\packages\Portable.BouncyCastle.1.9.0\lib\net40\BouncyCastle.Crypto.dll</HintPath>
     </Reference>
-    <Reference Include="MailKit, Version=3.1.0.0, Culture=neutral, PublicKeyToken=4e064fe7c44a8f1b, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\MailKit.3.1.1\lib\net48\MailKit.dll</HintPath>
+    <Reference Include="BouncyCastle.Cryptography, Version=2.0.0.0, Culture=neutral, PublicKeyToken=072edcf4a5328938, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\BouncyCastle.Cryptography.2.5.0\lib\net461\BouncyCastle.Cryptography.dll</HintPath>
+    </Reference>
+    <Reference Include="MailKit, Version=4.9.0.0, Culture=neutral, PublicKeyToken=4e064fe7c44a8f1b, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\MailKit.4.9.0\lib\net48\MailKit.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\..\..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.4.1.0\lib\net472\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.dll</HintPath>
@@ -65,23 +68,42 @@
     <Reference Include="Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\..\..\packages\Microsoft.Web.Infrastructure.1.0.0.0\lib\net40\Microsoft.Web.Infrastructure.dll</HintPath>
     </Reference>
-    <Reference Include="MimeKit, Version=3.1.0.0, Culture=neutral, PublicKeyToken=bede1c8a46c66814, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\MimeKit.3.1.1\lib\net48\MimeKit.dll</HintPath>
+    <Reference Include="MimeKit, Version=4.9.0.0, Culture=neutral, PublicKeyToken=bede1c8a46c66814, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\MimeKit.4.9.0\lib\net48\MimeKit.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\..\..\packages\Newtonsoft.Json.13.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
-    <Reference Include="System.Buffers, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
+    <Reference Include="System.Buffers, Version=4.0.4.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Buffers.4.6.0\lib\net462\System.Buffers.dll</HintPath>
     </Reference>
     <Reference Include="System.Configuration">
       <Private>False</Private>
     </Reference>
     <Reference Include="System.Data" />
     <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Formats.Asn1, Version=8.0.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Formats.Asn1.8.0.1\lib\net462\System.Formats.Asn1.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Memory, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Memory.4.6.0\lib\net462\System.Memory.dll</HintPath>
+    </Reference>
     <Reference Include="System.Net.Http, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <Reference Include="System.Numerics" />
+    <Reference Include="System.Numerics.Vectors, Version=4.1.5.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Numerics.Vectors.4.6.0\lib\net462\System.Numerics.Vectors.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=6.0.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Runtime.CompilerServices.Unsafe.6.1.0\lib\net462\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
+    </Reference>
     <Reference Include="System.Security" />
+    <Reference Include="System.Threading.Tasks.Extensions, Version=4.2.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.Threading.Tasks.Extensions.4.6.0\lib\net462\System.Threading.Tasks.Extensions.dll</HintPath>
+    </Reference>
+    <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
+    </Reference>
     <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
     <Reference Include="System.Web.Entity" />
diff --git a/src/Orchard.Web/Modules/Orchard.Email/Web.config b/src/Orchard.Web/Modules/Orchard.Email/Web.config
index 975f0c223..dc1b9f756 100644
--- a/src/Orchard.Web/Modules/Orchard.Email/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Email/Web.config
@@ -69,6 +69,18 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.Email/packages.config b/src/Orchard.Web/Modules/Orchard.Email/packages.config
index 58191e638..0589304a6 100644
--- a/src/Orchard.Web/Modules/Orchard.Email/packages.config
+++ b/src/Orchard.Web/Modules/Orchard.Email/packages.config
@@ -1,13 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="MailKit" version="3.1.1" targetFramework="net48" />
+  <package id="BouncyCastle.Cryptography" version="2.5.0" targetFramework="net48" />
+  <package id="MailKit" version="4.9.0" targetFramework="net48" />
   <package id="Microsoft.AspNet.Mvc" version="5.2.7" targetFramework="net48" />
   <package id="Microsoft.AspNet.Razor" version="3.2.7" targetFramework="net48" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net48" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="4.1.0" targetFramework="net48" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net48" />
-  <package id="MimeKit" version="3.1.1" targetFramework="net48" />
+  <package id="MimeKit" version="4.9.0" targetFramework="net48" />
   <package id="Newtonsoft.Json" version="13.0.3" targetFramework="net48" />
   <package id="Portable.BouncyCastle" version="1.9.0" targetFramework="net48" />
-  <package id="System.Buffers" version="4.5.1" targetFramework="net48" />
+  <package id="System.Buffers" version="4.6.0" targetFramework="net48" />
+  <package id="System.Formats.Asn1" version="8.0.1" targetFramework="net48" />
+  <package id="System.Memory" version="4.6.0" targetFramework="net48" />
+  <package id="System.Numerics.Vectors" version="4.6.0" targetFramework="net48" />
+  <package id="System.Runtime.CompilerServices.Unsafe" version="6.1.0" targetFramework="net48" />
+  <package id="System.Threading.Tasks.Extensions" version="4.6.0" targetFramework="net48" />
+  <package id="System.ValueTuple" version="4.5.0" targetFramework="net48" />
 </packages>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Layouts/Web.config b/src/Orchard.Web/Modules/Orchard.Layouts/Web.config
index 13faf444e..390cce3a8 100644
--- a/src/Orchard.Web/Modules/Orchard.Layouts/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Layouts/Web.config
@@ -69,6 +69,22 @@
         <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
         <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.Search/Web.config b/src/Orchard.Web/Modules/Orchard.Search/Web.config
index dbacb1007..5a55c6247 100644
--- a/src/Orchard.Web/Modules/Orchard.Search/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Search/Web.config
@@ -68,6 +68,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.Tags/Web.config b/src/Orchard.Web/Modules/Orchard.Tags/Web.config
index dbacb1007..5a55c6247 100644
--- a/src/Orchard.Web/Modules/Orchard.Tags/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Tags/Web.config
@@ -68,6 +68,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Orchard.Widgets/Web.config b/src/Orchard.Web/Modules/Orchard.Widgets/Web.config
index dbacb1007..5a55c6247 100644
--- a/src/Orchard.Web/Modules/Orchard.Widgets/Web.config
+++ b/src/Orchard.Web/Modules/Orchard.Widgets/Web.config
@@ -68,6 +68,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Modules/Upgrade/Web.config b/src/Orchard.Web/Modules/Upgrade/Web.config
index 27dd9de80..fa2449687 100644
--- a/src/Orchard.Web/Modules/Upgrade/Web.config
+++ b/src/Orchard.Web/Modules/Upgrade/Web.config
@@ -70,6 +70,18 @@
         <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
         <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Orchard.Web.csproj b/src/Orchard.Web/Orchard.Web.csproj
index cf56d91b1..0707cfd68 100644
--- a/src/Orchard.Web/Orchard.Web.csproj
+++ b/src/Orchard.Web/Orchard.Web.csproj
@@ -88,8 +88,8 @@
       <HintPath>..\packages\Owin.1.0\lib\net40\Owin.dll</HintPath>
     </Reference>
     <Reference Include="System" />
-    <Reference Include="System.Buffers, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Buffers.4.4.0\lib\netstandard2.0\System.Buffers.dll</HintPath>
+    <Reference Include="System.Buffers, Version=4.0.4.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Buffers.4.6.0\lib\net462\System.Buffers.dll</HintPath>
     </Reference>
     <Reference Include="System.Data" />
     <Reference Include="System.ComponentModel.DataAnnotations">
@@ -100,19 +100,19 @@
       <HintPath>..\..\lib\sqlce\System.Data.SqlServerCe.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Memory.4.5.3\lib\netstandard2.0\System.Memory.dll</HintPath>
+    <Reference Include="System.Memory, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Memory.4.6.0\lib\net462\System.Memory.dll</HintPath>
     </Reference>
     <Reference Include="System.Numerics" />
-    <Reference Include="System.Numerics.Vectors, Version=4.1.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Numerics.Vectors.4.4.0\lib\net46\System.Numerics.Vectors.dll</HintPath>
+    <Reference Include="System.Numerics.Vectors, Version=4.1.5.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Numerics.Vectors.4.6.0\lib\net462\System.Numerics.Vectors.dll</HintPath>
     </Reference>
-    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Runtime.CompilerServices.Unsafe.4.5.2\lib\netstandard2.0\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
+    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=6.0.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Runtime.CompilerServices.Unsafe.6.1.0\lib\net462\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
     </Reference>
     <Reference Include="System.ServiceModel" />
-    <Reference Include="System.Threading.Tasks.Extensions, Version=4.2.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\packages\System.Threading.Tasks.Extensions.4.5.2\lib\netstandard2.0\System.Threading.Tasks.Extensions.dll</HintPath>
+    <Reference Include="System.Threading.Tasks.Extensions, Version=4.2.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Threading.Tasks.Extensions.4.6.0\lib\net462\System.Threading.Tasks.Extensions.dll</HintPath>
     </Reference>
     <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
diff --git a/src/Orchard.Web/Themes/Web.config b/src/Orchard.Web/Themes/Web.config
index f09510e13..08cb067f3 100644
--- a/src/Orchard.Web/Themes/Web.config
+++ b/src/Orchard.Web/Themes/Web.config
@@ -91,6 +91,22 @@
                        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                        <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
                 </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+             </dependentAssembly>
+             <dependentAssembly>
+                 <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+                 <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+             </dependentAssembly>
          </assemblyBinding>
   </runtime>
   <system.codedom>
diff --git a/src/Orchard.Web/Web.config b/src/Orchard.Web/Web.config
index 913c4f04d..de4c277a8 100644
--- a/src/Orchard.Web/Web.config
+++ b/src/Orchard.Web/Web.config
@@ -227,6 +227,26 @@
         <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
         <bindingRedirect oldVersion="0.0.0.0-4.2.2.0" newVersion="4.2.2.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Threading.Tasks.Extensions" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.2.1.0" newVersion="4.2.1.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-6.0.1.0" newVersion="6.0.1.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Numerics.Vectors" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.5.0" newVersion="4.1.5.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
   <!-- Registering Roslyn as a compiler for Dynamic Compilation. -->
diff --git a/src/Orchard.Web/packages.config b/src/Orchard.Web/packages.config
index 750cc0a62..5b268d7c2 100644
--- a/src/Orchard.Web/packages.config
+++ b/src/Orchard.Web/packages.config
@@ -14,10 +14,10 @@
   <package id="Npgsql" version="4.0.17" targetFramework="net48" />
   <package id="Orchard.NuGet.Core" version="1.1.0.0" targetFramework="net48" />
   <package id="Owin" version="1.0" targetFramework="net48" />
-  <package id="System.Buffers" version="4.4.0" targetFramework="net48" />
-  <package id="System.Memory" version="4.5.3" targetFramework="net48" />
-  <package id="System.Numerics.Vectors" version="4.4.0" targetFramework="net48" />
-  <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.2" targetFramework="net48" />
-  <package id="System.Threading.Tasks.Extensions" version="4.5.2" targetFramework="net48" />
+  <package id="System.Buffers" version="4.6.0" targetFramework="net48" />
+  <package id="System.Memory" version="4.6.0" targetFramework="net48" />
+  <package id="System.Numerics.Vectors" version="4.6.0" targetFramework="net48" />
+  <package id="System.Runtime.CompilerServices.Unsafe" version="6.1.0" targetFramework="net48" />
+  <package id="System.Threading.Tasks.Extensions" version="4.6.0" targetFramework="net48" />
   <package id="System.ValueTuple" version="4.5.0" targetFramework="net48" />
 </packages>
\ No newline at end of file