diff --git a/.github/workflows/mmbot.yml b/.github/workflows/mmbot.yml
index 7a50f4884..2291b8e98 100644
--- a/.github/workflows/mmbot.yml
+++ b/.github/workflows/mmbot.yml
@@ -8,7 +8,7 @@ env:
   
 on:
   push:
-    branches: [ "main" ]
+    branches: [ "master" ]
     paths: [ "ledger/*.beancount" ]
 
 permissions: