diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c3eb96d..c0964f1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,6 +5,9 @@ on:
     branches:
       - "master"
       - "v3"
+  pull_request:
+    types:
+      - opened
 
 jobs:
   spec: