diff --git a/.forgejo/workflows/build-image.yml b/.forgejo/workflows/build-image.yml
index 6ce1620..70bf0ae 100644
--- a/.forgejo/workflows/build-image.yml
+++ b/.forgejo/workflows/build-image.yml
@@ -3,6 +3,8 @@ name: ci
 on:
   push:
     branches: main
+  pull_request:
+    types: [opened, synchronize, reopened]
 
 jobs:
   build-image: