diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3ce547f81..63fa729b1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,10 +1,11 @@
 name: test
 
 on:
-  # Every push onto the main branch triggers a retest.
+  # Every push onto the main branch and releases triggers a retest.
   push:
     branches:
       - master
+      - v12-branch
   # All pull_requests trigger a retest.
   pull_request: