diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6b87da5..c842b14 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,8 +1,15 @@
 
 name: Build Android and iOS
 
-on: [push, pull_request]
-
+on:
+  # Trigger the workflow on push or pull request,
+  # but only for the master branch
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
 jobs:
         
   Android: