diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 36131c6..e27f8f5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,8 +2,8 @@ name: Release
 
 on:
   push:
-    tags:
-      - '*'
+    branches:
+      - main
 
 jobs:
   zip-release:
@@ -23,7 +23,7 @@ jobs:
       run: echo "::set-output name=version::$(jq -r .version app/manifest.json)"
 
     - name: Zip subdirectory
-      run: zip -r $RELEASE_ZIP_FILENAME-${{ steps.version.outputs.version }}.zip ./$SOURCE_SUBDIRECTORY/
+      run: zip -r ${{ env.RELEASE_ZIP_FILENAME }}-${{ steps.version.outputs.version }}.zip ./${{ env.SOURCE_SUBDIRECTORY }}
 
     - name: Create Release
       id: create_release
@@ -43,6 +43,6 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ steps.create_release.outputs.upload_url }}
-        asset_path: "./$RELEASE_ZIP_FILENAME-${{ steps.version.outputs.version }}.zip"
-        asset_name: "$RELEASE_ZIP_FILENAME-${{ steps.version.outputs.version }}.zip"
+        asset_path: ${{ env.RELEASE_ZIP_FILENAME }}-${{ steps.version.outputs.version }}.zip"
+        asset_name: ${{ env.RELEASE_ZIP_FILENAME }}-${{ steps.version.outputs.version }}.zip"
         asset_content_type: application/zip