diff --git a/.github/workflows/build-and-upload-jar.yml b/.github/workflows/build-and-upload-jar.yml
index 9daf754..604419f 100644
--- a/.github/workflows/build-and-upload-jar.yml
+++ b/.github/workflows/build-and-upload-jar.yml
@@ -1,5 +1,7 @@
 name: Build and upload
-on: [push]
+on:
+  push:
+    branches: ["main"]
 
 jobs:
   build: