diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index e22b05a..d856bef 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -5,9 +5,6 @@ on:
     # Publish `master` as Docker `latest` image.
     branches: '*'
 
-  # Run tests for any PRs.
-  pull_request:
-
 env:
   IMAGE_NAME: heroku-php