diff --git a/docs/source/Time Synchronization/demo.rst b/docs/source/Time Synchronization/demo.rst
index acd21f5..5f852f3 100644
--- a/docs/source/Time Synchronization/demo.rst	
+++ b/docs/source/Time Synchronization/demo.rst	
@@ -24,4 +24,7 @@ Demo
 .. <iframe src="//player.bilibili.com/player.html?aid=283448464&bvid=BV1Wc411t7TD&cid=1399372456&p=1&high_quality=1&danmaku=0" allowfullscreen="allowfullscreen" width="100%" height="500" scrolling="no" frameborder="0" sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts"></iframe>
 
 
-.. <iframe src="//player.bilibili.com/player.html?aid=283448464&bvid=BV1Wc411t7TD&cid=1399372456&p=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
\ No newline at end of file
+.. <iframe src="//player.bilibili.com/player.html?aid=283448464&bvid=BV1Wc411t7TD&cid=1399372456&p=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+
+
+n/a
\ No newline at end of file
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 8394dd6..e77bde3 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -18,7 +18,6 @@
     'sphinx.ext.autosummary',
     'sphinx.ext.imgconverter',
     'sphinx.ext.intersphinx',
-    'sphinxcontrib.video',
 ]
 
 intersphinx_mapping = {