diff --git a/Src/Asp.NetCore2/AccessTest/AccessTest.csproj b/Src/Asp.NetCore2/AccessTest/AccessTest.csproj
index 1f83b115b..03ed10c74 100644
--- a/Src/Asp.NetCore2/AccessTest/AccessTest.csproj
+++ b/Src/Asp.NetCore2/AccessTest/AccessTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <Platforms>AnyCPU;x86</Platforms>
   </PropertyGroup>
 
diff --git a/Src/Asp.NetCore2/CacheTest/CacheTest.csproj b/Src/Asp.NetCore2/CacheTest/CacheTest.csproj
index 28f66a612..7a6874f96 100644
--- a/Src/Asp.NetCore2/CacheTest/CacheTest.csproj
+++ b/Src/Asp.NetCore2/CacheTest/CacheTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/ClickHouseTest/ClickHouseTest.csproj b/Src/Asp.NetCore2/ClickHouseTest/ClickHouseTest.csproj
index 453137f76..a2338857a 100644
--- a/Src/Asp.NetCore2/ClickHouseTest/ClickHouseTest.csproj
+++ b/Src/Asp.NetCore2/ClickHouseTest/ClickHouseTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/CustomDbTest/CustomDbTest.csproj b/Src/Asp.NetCore2/CustomDbTest/CustomDbTest.csproj
index eb83df7d5..eaa2add6b 100644
--- a/Src/Asp.NetCore2/CustomDbTest/CustomDbTest.csproj
+++ b/Src/Asp.NetCore2/CustomDbTest/CustomDbTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <Platforms>AnyCPU;ARM32</Platforms>
    
   </PropertyGroup>
diff --git a/Src/Asp.NetCore2/DbFirstRazorTest/DbFirstRazorTest.csproj b/Src/Asp.NetCore2/DbFirstRazorTest/DbFirstRazorTest.csproj
index 9f723e4ee..37493d375 100644
--- a/Src/Asp.NetCore2/DbFirstRazorTest/DbFirstRazorTest.csproj
+++ b/Src/Asp.NetCore2/DbFirstRazorTest/DbFirstRazorTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/DmOrmTest/DmOrmTest.csproj b/Src/Asp.NetCore2/DmOrmTest/DmOrmTest.csproj
index 84394ea2e..16c1ffc1a 100644
--- a/Src/Asp.NetCore2/DmOrmTest/DmOrmTest.csproj
+++ b/Src/Asp.NetCore2/DmOrmTest/DmOrmTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/GbaseTest/GbaseTest.csproj b/Src/Asp.NetCore2/GbaseTest/GbaseTest.csproj
index 5ba209dd3..a9f3c8efb 100644
--- a/Src/Asp.NetCore2/GbaseTest/GbaseTest.csproj
+++ b/Src/Asp.NetCore2/GbaseTest/GbaseTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/HGTest/HGTest.csproj b/Src/Asp.NetCore2/HGTest/HGTest.csproj
index c8148f8d7..0509b7173 100644
--- a/Src/Asp.NetCore2/HGTest/HGTest.csproj
+++ b/Src/Asp.NetCore2/HGTest/HGTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/Json2Sql/Json2Sql.csproj b/Src/Asp.NetCore2/Json2Sql/Json2Sql.csproj
index daa7c61a6..121e23594 100644
--- a/Src/Asp.NetCore2/Json2Sql/Json2Sql.csproj
+++ b/Src/Asp.NetCore2/Json2Sql/Json2Sql.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/KdbndpTest/KdbndpTest.csproj b/Src/Asp.NetCore2/KdbndpTest/KdbndpTest.csproj
index f7dc016c4..dd8c0a328 100644
--- a/Src/Asp.NetCore2/KdbndpTest/KdbndpTest.csproj
+++ b/Src/Asp.NetCore2/KdbndpTest/KdbndpTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/MySqlTest/MySqlTest.csproj b/Src/Asp.NetCore2/MySqlTest/MySqlTest.csproj
index 84394ea2e..16c1ffc1a 100644
--- a/Src/Asp.NetCore2/MySqlTest/MySqlTest.csproj
+++ b/Src/Asp.NetCore2/MySqlTest/MySqlTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/NugetTest/NugetTest.csproj b/Src/Asp.NetCore2/NugetTest/NugetTest.csproj
index 2de58181d..05a949c0d 100644
--- a/Src/Asp.NetCore2/NugetTest/NugetTest.csproj
+++ b/Src/Asp.NetCore2/NugetTest/NugetTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/OdbcTest/OdbcTest.csproj b/Src/Asp.NetCore2/OdbcTest/OdbcTest.csproj
index e13234c59..b2ffe4af2 100644
--- a/Src/Asp.NetCore2/OdbcTest/OdbcTest.csproj
+++ b/Src/Asp.NetCore2/OdbcTest/OdbcTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/OracleTest/OracleTest.csproj b/Src/Asp.NetCore2/OracleTest/OracleTest.csproj
index fe22e47f9..343f7b770 100644
--- a/Src/Asp.NetCore2/OracleTest/OracleTest.csproj
+++ b/Src/Asp.NetCore2/OracleTest/OracleTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/OscarTest/OscarTest.csproj b/Src/Asp.NetCore2/OscarTest/OscarTest.csproj
index 60f929097..8e88bad06 100644
--- a/Src/Asp.NetCore2/OscarTest/OscarTest.csproj
+++ b/Src/Asp.NetCore2/OscarTest/OscarTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/PgSqlTest/PgSqlTest.csproj b/Src/Asp.NetCore2/PgSqlTest/PgSqlTest.csproj
index 60f929097..8e88bad06 100644
--- a/Src/Asp.NetCore2/PgSqlTest/PgSqlTest.csproj
+++ b/Src/Asp.NetCore2/PgSqlTest/PgSqlTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/QuestDbTest/QuestDbTest.csproj b/Src/Asp.NetCore2/QuestDbTest/QuestDbTest.csproj
index 60f929097..8e88bad06 100644
--- a/Src/Asp.NetCore2/QuestDbTest/QuestDbTest.csproj
+++ b/Src/Asp.NetCore2/QuestDbTest/QuestDbTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest.csproj b/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest.csproj
index 0fa347920..2739be667 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest.csproj
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/SqliteTest/SqliteTest.csproj b/Src/Asp.NetCore2/SqliteTest/SqliteTest.csproj
index 60f929097..8e88bad06 100644
--- a/Src/Asp.NetCore2/SqliteTest/SqliteTest.csproj
+++ b/Src/Asp.NetCore2/SqliteTest/SqliteTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/TDengineTest/1TDengineTest.csproj b/Src/Asp.NetCore2/TDengineTest/1TDengineTest.csproj
index aff31e64f..4c1c12158 100644
--- a/Src/Asp.NetCore2/TDengineTest/1TDengineTest.csproj
+++ b/Src/Asp.NetCore2/TDengineTest/1TDengineTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>