diff --git a/requirements-dev.txt b/requirements-dev.txt
index b1f79d9..51692aa 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -55,7 +55,7 @@ pytz==2017.2
 PyYAML==3.12
 recommonmark==0.4.0
 requests==2.13.0
-rsa==3.4.2
+rsa==4.7
 scikit-learn==0.18.1
 scipy==0.19.0
 singledispatch==3.4.0.3