diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 894351b..6a50033 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,7 +6,7 @@ on:
   push:
     tags:
       - "v*.*.*"                  # normal release
-      - "nightly"                 # mutable tag
+      - "nightly"                 # the only one mutable tag
 
 jobs:
   release:
@@ -20,12 +20,18 @@ jobs:
 
     - name: Prepare release body
       run: |
-        if [[ ${{ github.ref }} =~ ^refs/tags/v(.*) ]]; then
-          RELEASE_TAG=v${BASH_REMATCH[1]}
-          PRERELEASE=false
+        if [[ $GITHUB_EVENT_NAME == 'push' && $GITHUB_REF == refs/tags/* ]]; then
+          RELEASE_TAG=${GITHUB_REF#refs/tags/}
+          if [[ $RELEASE_TAG == 'nightly' ]]; then
+            PRERELEASE=true
+          else
+            PRERELEASE=false
+          fi
+          echo "Workflow triggered by tag: $RELEASE_TAG"
         else
           RELEASE_TAG=nightly
           PRERELEASE=true
+          echo "Workflow triggered by schedule"
         fi
         echo "RELEASE_TAG=$RELEASE_TAG" >> $GITHUB_ENV
         echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
@@ -38,7 +44,7 @@ jobs:
     - name: Move the existing mutable tag
       # https://github.com/softprops/action-gh-release/issues/171
       run: |
-        if [[ $RELEASE_TAG != v* ]]; then
+        if [[ $GITHUB_EVENT_NAME == 'schedule' ]]; then
           # Determine if a given tag exists and matches a specific Git commit.
           if [ "$(git rev-parse -q --verify "refs/tags/$RELEASE_TAG")" = "$GITHUB_SHA" ]; then
             echo "mutalbe tag $RELEASE_TAG exists and matchs $GITHUB_SHA"