diff --git a/.gitea/workflows/checks.yml b/.gitea/workflows/checks.yml
index 289965c..20db9a2 100644
--- a/.gitea/workflows/checks.yml
+++ b/.gitea/workflows/checks.yml
@@ -125,6 +125,7 @@ name: checks
 # app.ini change. Only the filter miss ever posted a `skipped`.
 on:
   pull_request:
+    branches: [ci9v-base]
   workflow_dispatch:
 
 # ⚠️ NO `concurrency:` BLOCK, AND ITS ABSENCE IS AS LOAD-BEARING AS THE MISSING