diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 730aee8..6af6d53 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -1,7 +1,10 @@
 name: build catadog
 
 on:
-  [workflow_dispatch]
+  # for testing
+  pull_request:
+    branches:
+      - "**"
   # trigger catadog every time a push occurs on any branch
   # push: 
   #   branches: