diff --git a/.github/workflows/smalltalk-ci.yml b/.github/workflows/smalltalk-ci.yml
index 00c27384..9d4105e9 100644
--- a/.github/workflows/smalltalk-ci.yml
+++ b/.github/workflows/smalltalk-ci.yml
@@ -5,7 +5,7 @@ env:
 
 # Controls when the action will run. Triggers the workflow on push or pull request
 # events but only for the development branch
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build: