diff --git a/.github/workflows/check-developer-experience.yml b/.github/workflows/check-developer-experience.yml
index 98799988..78d1db6b 100644
--- a/.github/workflows/check-developer-experience.yml
+++ b/.github/workflows/check-developer-experience.yml
@@ -7,13 +7,13 @@
 
 # Production artifacts are produced in a sterile environment (in another CI workflow).
 
-# TESTING 123
 name: Developer Experience
 on:
   - push
+  - pull_request
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event.push || github.event.after }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 permissions: