diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 80114f4..1ff10b9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,8 @@
 name: CI
 
-on: push
+on:
+  - push
+  - pull_request
 
 env:
   MIX_ENV: test