diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6fc33f25..47f77b85 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,9 +1,13 @@
 name: test
 
 on:
+  pull_request:
+    types: [opened, synchronize]
+    branches:
+      - master
   push:
     branches:
-      - "**"
+      - master
 
 env:
   MATURIN_VERSION: 0.13.6