diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index e2c3f0b..de6ce65 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -2,7 +2,7 @@ name: docker
 
 on:
   push:
-    branches: master
+    branches: main
     tags: "*"
 
 jobs:
diff --git a/README.md b/README.md
index e71d664..bdcd1fc 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ttyd is a simple command-line tool for sharing terminal over the web.
 
-![screenshot](https://github.com/tsl0922/ttyd/raw/master/screenshot.gif)
+![screenshot](https://github.com/tsl0922/ttyd/raw/main/screenshot.gif)
 
 # Features