diff --git a/.gitea/workflows/default.yaml b/.gitea/workflows/default.yaml
index 7bbaee9..9ed2a7c 100644
--- a/.gitea/workflows/default.yaml
+++ b/.gitea/workflows/default.yaml
@@ -1,6 +1,9 @@
 name: Build iso when a new version is pushed
 run-name: iso building
-on: [push]
+on:
+  push:
+    branches:
+      - 'master'
 
 jobs:
   test: