diff --git a/.github/actions/release/action.yml b/.github/actions/release/action.yml
index 210cbc721..0a7bff519 100644
--- a/.github/actions/release/action.yml
+++ b/.github/actions/release/action.yml
@@ -4,10 +4,12 @@ description: "release"
 runs:
   using: "composite"
   steps:
-    - name: prepare tarball
+    - name: prepare tarball and checksum
       working-directory: src
       shell: bash
-      run: tar -cvzf mcfost.tar.gz mcfost
+      run: |
+        tar -cvzf mcfost.tar.gz mcfost
+        sha1sum  mcfost_tar.tgz > mcfost_update.sha1
 
     - name: Add binary to release
       uses: shogo82148/actions-upload-release-asset@v1.6.6
@@ -15,3 +17,10 @@ runs:
         upload_url: ${{ github.event.release.upload_url }}
         asset_path: src/mcfost.tar.gz
         asset_name: ${{ format('mcfost_{0}-{1}.tar.gz', runner.os, runner.arch) }}
+
+    - name: Add sha1 to release
+      uses: shogo82148/actions-upload-release-asset@v1.6.6
+      with:
+        upload_url: ${{ github.event.release.upload_url }}
+        asset_path: src/mcfost_update.sha1
+        asset_name: ${{ format('mcfost_{0}-{1}.sha1', runner.os, runner.arch) }}