diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 895f735e720..b997eaa37b2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -92,7 +92,7 @@ jobs:
       run: cmake --fresh -G Ninja -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_PGO=ON -DENABLE_ARCH_AVX2=ON -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON -DCMAKE_C_COMPILER=clang-cl -DCMAKE_CXX_COMPILER=clang-cl -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
 
     - name: Build
-      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} --parallel $env:NUMBER_OF_PROCESSORS
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} --parallel 3
 
     - name: Upload Windows SDL artifact
       uses: actions/upload-artifact@v4
@@ -146,7 +146,7 @@ jobs:
       run: cmake --fresh -G Ninja -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_QT_GUI=ON -DENABLE_UPDATER=ON -DENABLE_PGO=ON -DENABLE_ARCH_AVX2=ON -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON -DCMAKE_C_COMPILER=clang-cl -DCMAKE_CXX_COMPILER=clang-cl -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
 
     - name: Build
-      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} --parallel $env:NUMBER_OF_PROCESSORS
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} --parallel 3
 
     - name: Deploy and Package
       run: |