diff --git a/requirements.txt b/requirements.txt
index aeb6313..eb728ed 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ pyparsing==2.0.1
 python-dateutil==1.5
 pytz==2013.7
 requests==2.5.0
-rsa==3.2
+rsa==4.7
 scipy==0.13.0b1
 simplejson==3.8.0
 six==1.9.0