diff --git a/.github/workflows/sha.yml b/.github/workflows/sha.yml
index a01e236..38210aa 100644
--- a/.github/workflows/sha.yml
+++ b/.github/workflows/sha.yml
@@ -13,6 +13,7 @@ jobs:
     # Set the type of machine to run on
     runs-on: ubuntu-latest
 
+    if: contains(github.ref, "master")
     steps:
       # Checks out a copy of your repository on the ubuntu-latest machine
       - name: Checkout code