diff --git a/.github/workflows/zip.yml b/.github/workflows/zip.yml
index 51ecb67..40f63ea 100644
--- a/.github/workflows/zip.yml
+++ b/.github/workflows/zip.yml
@@ -21,6 +21,10 @@ jobs:
         run: |
           zip -9 -r repo.zip . -x ".git/*" "repo.zip"
 
+      - name: Generate SHA-1
+        run: |
+            sha1sum repo.zip | cut -d' ' -f1 > repo.zip.sha1
+
       - name: Generate release metadata and body
         id: meta
         shell: bash
@@ -53,6 +57,8 @@ jobs:
           tag_name: ${{ steps.meta.outputs.tag }}
           name: ${{ steps.meta.outputs.name }}
           body_path: RELEASE_BODY.md
-          files: repo.zip
+          files: |
+              repo.zip
+              repo.zip.sha1
           draft: false
           prerelease: false