diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index e2346a4a5..1b7ed87bc 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -1,7 +1,7 @@
 name: gradido publish CI
 
 on:
-  push:
+  pull_request:
     branches:
       - master
 
@@ -10,7 +10,7 @@ jobs:
   # JOB: DOCKER BUILD PRODUCTION FRONTEND ######################################
   ##############################################################################
   build_production_frontend:
-    if: startsWith(github.event.head_commit.message, 'chore(release):')
+    if: startsWith(github.event.pull_request.title, 'chore(release):')
     name: Docker Build Production - Frontend
     runs-on: ubuntu-latest
     #needs: [nothing]