diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7243c7f0..52d4e02a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+      # renovate/** branches are generated by https://github.com/apps/renovate
       - renovate/**
 
   pull_request: