diff --git a/requirements.txt b/requirements.txt
index 815e13cf..1e004463 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ pyasn1-modules==0.2.1
 pylint==1.8.1
 pytz==2017.3
 requests==2.18.4
-rsa==3.4.2
+rsa==4.1
 simplejson==3.13.2
 six==1.11.0
 typing==3.6.2