diff --git a/README-zh.md b/README-zh.md
index d44dc66..e17298c 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -58,13 +58,14 @@ python tcpdns.py -c
 ### python模块
    * [gevent] (https://github.com/surfly/gevent)
    * [pylru] (https://github.com/jlhutch/pylru)
+   * [python-daemon] (https://pypi.python.org/pypi/python-daemon)
 
 ### python模块安装
 
 ``` bash
   sudo apt-get install libevent-dev
   sudo pip install gevent
-  sudo pip install dnspython
+  sudo pip install python-daemon
 ```
 
 LICENSE
diff --git a/README.md b/README.md
index ab2052f..ddd5fc8 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ Dependencies
 ### python moudules
    * [gevent] (https://github.com/surfly/gevent)
    * [pylru] (https://github.com/jlhutch/pylru)
+   * [python-daemon] (https://pypi.python.org/pypi/python-daemon)
 
 INSTALL
 ---------------------
@@ -34,6 +35,7 @@ INSTALL
 ``` bash
   sudo apt-get install libevent-dev
   sudo pip install gevent
+  sudo pip install python-daemon
 ```
 
 LICENSE