diff --git a/src/Orchard.Tests/Orchard.Framework.Tests.csproj b/src/Orchard.Tests/Orchard.Framework.Tests.csproj
index 8f1fe1e7f..fec137c69 100644
--- a/src/Orchard.Tests/Orchard.Framework.Tests.csproj
+++ b/src/Orchard.Tests/Orchard.Framework.Tests.csproj
@@ -143,6 +143,11 @@
       <HintPath>..\..\lib\sqlce\System.Data.SqlServerCe.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System.Runtime.Serialization">
       <RequiredTargetFramework>3.0</RequiredTargetFramework>
     </Reference>
@@ -150,9 +155,9 @@
     <Reference Include="System.Web.Abstractions">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
-    <Reference Include="System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\aspnetwebapi\System.Web.Http.dll</HintPath>
+    <Reference Include="System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.AspNet.WebApi.Core.5.2.3\lib\net45\System.Web.Http.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/src/Orchard.Tests/packages.config b/src/Orchard.Tests/packages.config
index a1618e4ec..9bddd2b88 100644
--- a/src/Orchard.Tests/packages.config
+++ b/src/Orchard.Tests/packages.config
@@ -7,6 +7,8 @@
   <package id="Iesi.Collections" version="4.0.1.4000" targetFramework="net451" />
   <package id="IronRuby" version="1.1.3" targetFramework="net451" />
   <package id="log4net" version="2.0.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net451" />
   <package id="Moq" version="4.0.10827" targetFramework="net451" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net451" />
   <package id="NHibernate" version="4.0.1.4000" targetFramework="net451" />
diff --git a/src/Orchard.Web/Modules/Orchard.Layouts/Orchard.Layouts.csproj b/src/Orchard.Web/Modules/Orchard.Layouts/Orchard.Layouts.csproj
index 3253d3481..9f07acfa6 100644
--- a/src/Orchard.Web/Modules/Orchard.Layouts/Orchard.Layouts.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Layouts/Orchard.Layouts.csproj
@@ -58,10 +58,15 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System.Web.DynamicData" />
-    <Reference Include="System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\lib\aspnetwebapi\System.Web.Http.dll</HintPath>
+    <Reference Include="System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\Microsoft.AspNet.WebApi.Core.5.2.3\lib\net45\System.Web.Http.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Web.Mvc, Version=5.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/src/Orchard.Web/Modules/Orchard.Layouts/packages.config b/src/Orchard.Web/Modules/Orchard.Layouts/packages.config
index da393e2d1..3b6e675b3 100644
--- a/src/Orchard.Web/Modules/Orchard.Layouts/packages.config
+++ b/src/Orchard.Web/Modules/Orchard.Layouts/packages.config
@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net451" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net451" />
 </packages>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj b/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj
index 70fc21ef0..9b9e4c70e 100644
--- a/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Taxonomies/Orchard.Taxonomies.csproj
@@ -59,13 +59,18 @@
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
     <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System.Web.ApplicationServices" />
     <Reference Include="System.Web.DynamicData" />
     <Reference Include="System.Web.Entity" />
     <Reference Include="System.Web.Extensions" />
-    <Reference Include="System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\lib\aspnetwebapi\System.Web.Http.dll</HintPath>
+    <Reference Include="System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\Microsoft.AspNet.WebApi.Core.5.2.3\lib\net45\System.Web.Http.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Web.Mvc, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/src/Orchard.Web/Modules/Orchard.Taxonomies/packages.config b/src/Orchard.Web/Modules/Orchard.Taxonomies/packages.config
index da393e2d1..3b6e675b3 100644
--- a/src/Orchard.Web/Modules/Orchard.Taxonomies/packages.config
+++ b/src/Orchard.Web/Modules/Orchard.Taxonomies/packages.config
@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net451" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net451" />
 </packages>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj b/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj
index 19b5f8a94..3cfcc69d6 100644
--- a/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj
+++ b/src/Orchard.Web/Modules/Upgrade/Upgrade.csproj
@@ -66,11 +66,16 @@
     <Reference Include="System.ComponentModel.DataAnnotations">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System.Transactions" />
     <Reference Include="System.Web.DynamicData" />
-    <Reference Include="System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\..\lib\aspnetwebapi\System.Web.Http.dll</HintPath>
+    <Reference Include="System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\Microsoft.AspNet.WebApi.Core.5.2.3\lib\net45\System.Web.Http.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Web.Mvc, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/src/Orchard.Web/Modules/Upgrade/packages.config b/src/Orchard.Web/Modules/Upgrade/packages.config
index 46574e780..ec5eeb167 100644
--- a/src/Orchard.Web/Modules/Upgrade/packages.config
+++ b/src/Orchard.Web/Modules/Upgrade/packages.config
@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Iesi.Collections" version="4.0.0.4000" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net451" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net451" />
   <package id="NHibernate" version="4.0.1.4000" targetFramework="net451" />
 </packages>
\ No newline at end of file
diff --git a/src/Orchard/Orchard.Framework.csproj b/src/Orchard/Orchard.Framework.csproj
index ab6522219..48b4845d3 100644
--- a/src/Orchard/Orchard.Framework.csproj
+++ b/src/Orchard/Orchard.Framework.csproj
@@ -116,6 +116,10 @@
     <Reference Include="System.Net.Http">
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System.Runtime.Serialization">
       <RequiredTargetFramework>3.0</RequiredTargetFramework>
     </Reference>
@@ -124,12 +128,13 @@
     <Reference Include="System.Transactions" />
     <Reference Include="System.Web" />
     <Reference Include="System.Web.ApplicationServices" />
-    <Reference Include="System.Web.Http">
-      <HintPath>..\..\lib\aspnetwebapi\System.Web.Http.dll</HintPath>
+    <Reference Include="System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.AspNet.WebApi.Core.5.2.3\lib\net45\System.Web.Http.dll</HintPath>
+      <Private>True</Private>
     </Reference>
-    <Reference Include="System.Web.Http.WebHost, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\aspnetwebapi\System.Web.Http.WebHost.dll</HintPath>
+    <Reference Include="System.Web.Http.WebHost, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.AspNet.WebApi.WebHost.5.2.3\lib\net45\System.Web.Http.WebHost.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/src/Orchard/packages.config b/src/Orchard/packages.config
index 773fc7cb9..a53b95c63 100644
--- a/src/Orchard/packages.config
+++ b/src/Orchard/packages.config
@@ -6,6 +6,9 @@
   <package id="FluentNHibernate" version="1.4.0.0" targetFramework="net451" />
   <package id="Iesi.Collections" version="4.0.1.4000" targetFramework="net451" />
   <package id="log4net" version="2.0.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net451" />
+  <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net451" />
   <package id="Microsoft.Owin" version="3.0.0" targetFramework="net451" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net451" />
   <package id="NHibernate" version="4.0.1.4000" targetFramework="net451" />