diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0c35493..872366a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,7 +34,7 @@ jobs:
       - run: dotnet build ${{ env.PROJECT_NAME }} --configuration Release --no-restore -o ${{ env.BUILD_DIR }}
       - run: cp -r ${{ env.RESOURCE_DIR }} ${{ env.BUILD_DIR }}
 
-      - run: zip -r ${{ env.BUILD_DIR }}.zip ${{ env.BUILD_DIR }}
+      - run: resource/vapourSynth/7z.exe a ${{ env.BUILD_DIR }}.7z ${{ env.BUILD_DIR }} -r -mx=9
       - uses: actions/upload-artifact@v4
         with:
           name: SekaiTools.Nightly.zip