diff --git a/.github/workflows/build-and-check.yml b/.github/workflows/build-and-check.yml
index f2ca07c..956f7b7 100644
--- a/.github/workflows/build-and-check.yml
+++ b/.github/workflows/build-and-check.yml
@@ -29,10 +29,10 @@ jobs:
       run: dotnet format --verify-no-changes
     - name: Test
       run: dotnet test --no-build --verbosity normal --logger trx --collect:"XPlat Code Coverage"
-#    - name: Install dotnet-stryker globally
-#      run: dotnet tool install -g dotnet-stryker
-#    - name: Run mutation test
-#      run: dotnet stryker --mutation-level Complete --break-at 99
+    - name: Install dotnet-stryker globally
+      run: dotnet tool install -g dotnet-stryker
+    - name: Run mutation test
+      run: dotnet stryker --mutation-level Complete --break-at 99
     - name: Combine Coverage Reports
       uses: danielpalme/ReportGenerator-GitHub-Action@5.5.10
       with: