diff --git a/.forgejo/workflows/cachix.yml b/.forgejo/workflows/cachix.yml
index bcd6ef87..07dd8c54 100644
--- a/.forgejo/workflows/cachix.yml
+++ b/.forgejo/workflows/cachix.yml
@@ -3,6 +3,7 @@ name: Cachix
 on:
   push:
     branches: [ main ]
+  pull_request:
 
 env:
   USER: root