diff --git a/README.md b/README.md
index bcbb6f1..16f47b5 100644
--- a/README.md
+++ b/README.md
@@ -21,11 +21,8 @@ This is a [demo on Heroku](https://hexxa-quickshare.herokuapp.com/).
 
 (User is `demo`, password is `Quicksh@re`, uploading/downloading speed is limited to around 100KB.)
 
-<video controls width="1280">
-    <source src="./docs/imgs/v0.9.1/upload.webm"
-            type="video/webm">
-    Sorry, your browser doesn't support embedded videos.
-</video>
+<image src="./docs/imgs/v0.9.1/quickshare_1920.gif" title="preview">
+
 
 English | [简体中文](./docs/README_zh-cn.md)
 
diff --git a/docs/README_zh-cn.md b/docs/README_zh-cn.md
index c8b1c19..866036e 100644
--- a/docs/README_zh-cn.md
+++ b/docs/README_zh-cn.md
@@ -21,11 +21,7 @@
 
 (用户名是 `demo`, 密码是 `Quicksh@re`, 上传/下载速度被限制在大约 100KB.)
 
-<video controls width="1280">
-    <source src="./docs/imgs/v0.9.1/upload.webm"
-            type="video/webm">
-    Sorry, your browser doesn't support embedded videos.
-</video>
+<image src="./imgs/v0.9.1/quickshare_1920.gif" title="preview">
 
 [English](../README.md) | 简体中文
 
diff --git a/docs/imgs/v0.9.1/quickshare_1920.gif b/docs/imgs/v0.9.1/quickshare_1920.gif
new file mode 100644
index 0000000..ce4f3eb
Binary files /dev/null and b/docs/imgs/v0.9.1/quickshare_1920.gif differ
diff --git a/docs/v0.9.1/upload.webm b/docs/v0.9.1/upload.webm
deleted file mode 100644
index 4e86543..0000000
Binary files a/docs/v0.9.1/upload.webm and /dev/null differ