diff --git a/.github/workflows/publish-image.yml b/.github/workflows/publish-image.yml
index 677880d1..fe54ba89 100644
--- a/.github/workflows/publish-image.yml
+++ b/.github/workflows/publish-image.yml
@@ -5,10 +5,9 @@ on:
     - cron: '0 10 * * *' # everyday at 10am
   push:
     branches:
-      - '**'
+      - master
     tags:
       - 'v*.*.*'
-  pull_request:
 
 jobs:
   docker: