diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e0d4279..a33a86e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,10 @@
 ---
 name: CI
-"on": push
+on:  # yamllint disable-line rule:truthy
+  push:
+  pull_request:
+    branches:
+      - '**'
 
 jobs:
   ci: