diff --git a/requirements.txt b/requirements.txt
index 2412d12..4bc5b36 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -84,7 +84,7 @@ pytz==2017.2
 render50==2.3.1
 requests==2.18.4
 requests-oauthlib==0.8.0
-rsa==3.4.2
+rsa==4.1
 six==1.11.0
 smmap2==2.0.3
 SQLAlchemy==1.1.13