diff --git a/.github/workflows/csharp.yml b/.github/workflows/csharp.yml
index 5ed047d..19ce60a 100644
--- a/.github/workflows/csharp.yml
+++ b/.github/workflows/csharp.yml
@@ -24,7 +24,7 @@ jobs:
           submodules: true
       - name: Test
         run: |
-          dotnet test -c Release -f net7
+          dotnet test -c Release -f net8
   pushNuGetPackageToGitHubPackageRegistry:
     needs: test
     runs-on: ubuntu-latest
diff --git a/csharp/Platform.Data.Doublets.Json.Benchmarks/Platform.Data.Doublets.Json.Benchmarks.csproj b/csharp/Platform.Data.Doublets.Json.Benchmarks/Platform.Data.Doublets.Json.Benchmarks.csproj
index e07468f..02875f9 100644
--- a/csharp/Platform.Data.Doublets.Json.Benchmarks/Platform.Data.Doublets.Json.Benchmarks.csproj
+++ b/csharp/Platform.Data.Doublets.Json.Benchmarks/Platform.Data.Doublets.Json.Benchmarks.csproj
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-		<TargetFramework>net6</TargetFramework>
+		<TargetFrameworks>net7;net8</TargetFrameworks>
 		<IsPackable>false</IsPackable>
 	</PropertyGroup>
 
diff --git a/csharp/Platform.Data.Doublets.Json.Exporter/Platform.Data.Doublets.Json.Exporter.csproj b/csharp/Platform.Data.Doublets.Json.Exporter/Platform.Data.Doublets.Json.Exporter.csproj
index b763a3c..594fdc9 100644
--- a/csharp/Platform.Data.Doublets.Json.Exporter/Platform.Data.Doublets.Json.Exporter.csproj
+++ b/csharp/Platform.Data.Doublets.Json.Exporter/Platform.Data.Doublets.Json.Exporter.csproj
@@ -7,7 +7,7 @@
         <VersionPrefix>0.1.0</VersionPrefix>
         <Authors>FreePhoenix888</Authors>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net6</TargetFramework>
+        <TargetFrameworks>net7;net8</TargetFrameworks>
         <PackAsTool>true</PackAsTool>
         <ToolCommandName>links2json</ToolCommandName>
         <AssemblyName>Platform.Data.Doublets.Json.Exporter</AssemblyName>
diff --git a/csharp/Platform.Data.Doublets.Json.Importer/Platform.Data.Doublets.Json.Importer.csproj b/csharp/Platform.Data.Doublets.Json.Importer/Platform.Data.Doublets.Json.Importer.csproj
index 58706c7..505bfe6 100644
--- a/csharp/Platform.Data.Doublets.Json.Importer/Platform.Data.Doublets.Json.Importer.csproj
+++ b/csharp/Platform.Data.Doublets.Json.Importer/Platform.Data.Doublets.Json.Importer.csproj
@@ -7,7 +7,7 @@
         <VersionPrefix>0.1.0</VersionPrefix>
         <Authors>FreePhoenix888</Authors>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net6</TargetFramework>
+        <TargetFrameworks>net7;net8</TargetFrameworks>
         <PackAsTool>true</PackAsTool>
         <ToolCommandName>json2links</ToolCommandName>
         <AssemblyName>Platform.Data.Doublets.Json.Importer</AssemblyName>
diff --git a/csharp/Platform.Data.Doublets.Json.Tests/Platform.Data.Doublets.Json.Tests.csproj b/csharp/Platform.Data.Doublets.Json.Tests/Platform.Data.Doublets.Json.Tests.csproj
index 46c0357..ca7d24b 100644
--- a/csharp/Platform.Data.Doublets.Json.Tests/Platform.Data.Doublets.Json.Tests.csproj
+++ b/csharp/Platform.Data.Doublets.Json.Tests/Platform.Data.Doublets.Json.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFramework>net7</TargetFramework>
+		<TargetFrameworks>net7;net8</TargetFrameworks>
 		<IsPackable>false</IsPackable>
 		<LangVersion>latest</LangVersion>
 	</PropertyGroup>
diff --git a/csharp/Platform.Data.Doublets.Json/Platform.Data.Doublets.Json.csproj b/csharp/Platform.Data.Doublets.Json/Platform.Data.Doublets.Json.csproj
index d320a86..c685ec9 100644
--- a/csharp/Platform.Data.Doublets.Json/Platform.Data.Doublets.Json.csproj
+++ b/csharp/Platform.Data.Doublets.Json/Platform.Data.Doublets.Json.csproj
@@ -6,7 +6,7 @@
 		<AssemblyTitle>Platform.Data.Doublets.Json</AssemblyTitle>
 		<VersionPrefix>0.1.2</VersionPrefix>
 		<Authors>FreePhoenix888</Authors>
-		<TargetFramework>net7</TargetFramework>
+		<TargetFrameworks>net7;net8</TargetFrameworks>
 		<AssemblyName>Platform.Data.Doublets.Json</AssemblyName>
 		<PackageId>Platform.Data.Doublets.Json</PackageId>
 		<PackageTags>LinksPlatform;Data;Doublets;Json</PackageTags>