diff --git a/requirements.txt b/requirements.txt
index 4c750a5..25368d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ pytz==2016.6.1
 rdflib==4.2.1
 requests==2.10.0
 requests-oauthlib==0.6.1
-rsa==3.4.2
+rsa==4.7
 scikit-learn==0.17.1
 scipy==0.18.0
 simplejson==3.8.2