diff --git a/.github/workflows/dotnet-build-cover.yml b/.github/workflows/dotnet-build-cover.yml
index e6c9dfb..4e84111 100644
--- a/.github/workflows/dotnet-build-cover.yml
+++ b/.github/workflows/dotnet-build-cover.yml
@@ -16,7 +16,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 5.0.401
+        dotnet-version: 8.0.203
     - name: Build
       run: ./scripts/build.sh
     - name: Cover
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 9602b00..3f541a0 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 5.0.401
+          dotnet-version: 8.0.203
       - name: Build
         run: ./scripts/build.sh
       - name: Test
diff --git a/HexCore.Tests/HexCore.Tests.csproj b/HexCore.Tests/HexCore.Tests.csproj
index 89f9a8a..8542991 100644
--- a/HexCore.Tests/HexCore.Tests.csproj
+++ b/HexCore.Tests/HexCore.Tests.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net5.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <RootNamespace>HexCoreTests</RootNamespace>
     </PropertyGroup>