diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a9db2811c..40f83e578 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,6 +5,11 @@ on:
     branches-ignore:
       - stable
       - alpha
+  pull_request:
+    types: [opened, synchronize]
+    branches:
+      - stable
+      - alpha
 
 jobs:
   build: