diff --git a/Docker/Dockerfile b/Docker/Dockerfile
index 4cbec96..71d613d 100644
--- a/Docker/Dockerfile
+++ b/Docker/Dockerfile
@@ -1,5 +1,5 @@
 # Dockerfile by xianhu: build a docker image for spider or flask
-# usage: docker build -t user/centos:v10 .
+# usage: docker build -t user/centos:v11 .
 
 FROM centos:6.8
 
diff --git a/Docker/requirements.txt b/Docker/requirements.txt
index 73a0ac2..17c3642 100644
--- a/Docker/requirements.txt
+++ b/Docker/requirements.txt
@@ -3,6 +3,7 @@ pylint
 lxml
 html5lib
 pybloom_live
+fake-useragent
 beautifulsoup4
 aiohttp
 requests