diff --git a/docs/conf.py b/docs/conf.py
index cec8e8cbb..068048c0f 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -42,7 +42,6 @@ release = '0.5.0'
 extensions = [
     'sphinx.ext.viewcode',
     'sphinx.ext.githubpages',
-    'chinese_search',
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -166,4 +165,4 @@ texinfo_documents = [
 
 
 # -- Extension configuration -------------------------------------------------
-html_logo = '_static/img/logo-text.png'
\ No newline at end of file
+html_logo = '_static/img/logo-text.png'