diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ecd14ef1..a057f798 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,10 +25,10 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '8.0.x'
+          dotnet-version: '9.0.x'
       
       - name: Build solution
         run: dotnet build -c Release
 
       - name: Run tests
-        run: dotnet test -c Release --no-build --no-restore
\ No newline at end of file
+        run: dotnet test -c Release --no-build --no-restore
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bff840f1..9ba403e9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,7 +33,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: '8.0.x'
+        dotnet-version: '9.0.x'
     
     - name: Restore dependencies
       run: dotnet restore
diff --git a/.github/workflows/deep-source.yml b/.github/workflows/deep-source.yml
index c8ee3cb5..d2563df2 100644
--- a/.github/workflows/deep-source.yml
+++ b/.github/workflows/deep-source.yml
@@ -22,7 +22,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '8.0.x'
+          dotnet-version: '9.0.x'
 
       - name: Build and analyze
         env:
@@ -30,4 +30,4 @@ jobs:
         run: |
           dotnet build -c Release --verbosity minimal
           dotnet test -c Release --verbosity minimal --no-build --no-restore /p:CollectCoverage=true /p:CoverletOutputFormat="cobertura" /p:CoverletOutput='../Results/'
-          ./bin/deepsource report --analyzer test-coverage --key csharp --value-file Tests/Results/coverage.cobertura.xml
\ No newline at end of file
+          ./bin/deepsource report --analyzer test-coverage --key csharp --value-file Tests/Results/coverage.cobertura.xml
diff --git a/Tests/AiCommitMessage.Tests/AiCommitMessage.Tests.csproj b/Tests/AiCommitMessage.Tests/AiCommitMessage.Tests.csproj
index fff883ce..6a6c4ac6 100644
--- a/Tests/AiCommitMessage.Tests/AiCommitMessage.Tests.csproj
+++ b/Tests/AiCommitMessage.Tests/AiCommitMessage.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>