diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0eee145c..467d2ae3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,7 +1,9 @@
 name: CI
 
 # Triggers the workflow on push or pull request events
-on: [push, pull_request]
+on:
+  pull_request:
+    types: [opened, synchronize]
 
 jobs:
   bats-test: