diff --git a/requirements.txt b/requirements.txt
index b6286b4..4d642ce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ html5lib==0.999
 jinja2==2.7.1
 lxml==3.2.4
 matplotlib==1.3.1
-mechanize==0.2.5
+mechanize==0.4.6
 mock==1.0.1
 nltk==2.0.4
 numpy==1.7.1