diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index c869688..61eb54d 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -2,7 +2,7 @@
 # yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
 name: PHPUnit
 
-on: [ push ]
+on: [ push, pull_request ]
 
 jobs:
   build-test: