diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 90a23d8..5d11422 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,6 +1,6 @@
 name: build
 
-on: [push]
+on: [push, pull_request]
 
 env:
   CTAN_URL: https://mirrors.rit.edu/CTAN