diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 84ebd71..7a69988 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 name: CI
-on: [push]
+on: [ push, pull_request ]
 jobs:
   build-java:
     strategy: