diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index cb1619a..be4e302 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -48,6 +48,7 @@ jobs:
         with:
           artifacts: .\src-tauri\target\release\bundle\msi\Launcherg_${{ steps.variables.outputs.version }}_x64_ja-JP.msi.zip
           token: ${{ secrets.GITHUB_TOKEN }}
+          prerelease: true
 
       - name: Update .tauri-updater.json
         run: |