diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3f854868..ffae1401 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,6 +12,11 @@ name: CI
 # would trigger our jobs twice on pull requests (once from "push" event and once
 # from "pull_request->synchronize")
 on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
   push:
     branches:
       - 'main'