diff --git a/README.md b/README.md
index da804dd..6a410a8 100644
--- a/README.md
+++ b/README.md
@@ -62,13 +62,13 @@ $ brew install terminal-notifier
 
 `terminal-notifier` actually is a cross-platform desktop notifier, please refer to ➜ [terminal-notifier](https://github.com/julienXX/terminal-notifier#download)
 
-<img src="https://github.com/coolcode/tomato-clock/blob/master/img/screenshot-macos.png?raw=true" alt="terminal-notifier" width="200"/>
+<img src="https://github.com/coolcode/tomato-clock/blob/master/img/screenshot-macos.png?raw=true" alt="terminal-notifier" width="300"/>
 
 - Ubuntu
 
 `notify-send`
 
-<img src="https://github.com/coolcode/tomato-clock/blob/master/img/screenshot-ubuntu.png?raw=true" alt="ubuntu-notification" width="200"/>
+<img src="https://github.com/coolcode/tomato-clock/blob/master/img/screenshot-ubuntu.png?raw=true" alt="ubuntu-notification" width="300"/>