diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 136809bb..0d82609d 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -2,7 +2,9 @@ name: Build up document
 
 on:
   push:
-    branches: [ master, manim ]
+    branches:
+      - master
+      - manim
 
 jobs:
   build_docs_and_deploy: