diff --git a/cumulus/.github/workflows/srtool.yml b/cumulus/.github/workflows/srtool.yml
index d3be94fd09..69b68c779b 100644
--- a/cumulus/.github/workflows/srtool.yml
+++ b/cumulus/.github/workflows/srtool.yml
@@ -14,6 +14,10 @@ on:
       - "scripts"
       - "test"
 
+    branches:
+      - "release*"
+      - "master"
+
   schedule:
     - cron: "00 02 * * 1" # 2AM weekly on monday