diff --git a/requirements.txt b/requirements.txt
index 2318d92..bdee736 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ python-dateutil==2.8.0
 pytz==2019.1
 pyzmq==18.0.2
 requests==2.22.0
-rsa==4.0
+rsa==4.7
 six==1.12.0
 tornado==6.0.3
 traitlets==4.3.2