diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c4fcedb868..12cfd4713e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,6 +10,7 @@ on:
     tags:
       - '**'
   pull_request:
+  merge_group:
   schedule:
     # build it monthly: At 04:00 on day-of-month 1.
     - cron:  '0 4 1 * *'