diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 336499c..a4129e0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,7 +1,13 @@
 name: ci
 
 on:
+  pull_request:
+    branches: [main]
+    paths:
+      - '**.sol'
+      - '**.yml'
   push:
+    branches: [main]
     paths:
       - '**.sol'
       - '**.yml'