diff --git a/requirements.txt b/requirements.txt
index 7a461f2..63451ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,7 +56,7 @@ pyasn1-modules==0.1.5
 python-dateutil==2.6.1
 redis==2.10.6
 requests==2.18.4
-rsa==3.4.2
+rsa==4.1
 six==1.11.0
 stylelens-index==1.0.0
 tenacity==4.5.0