diff --git a/requirements.txt b/requirements.txt
index 5caa2e9..5ac0868 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ pyparsing==2.1.10
 python-jwt==2.0.1
 requests==2.13.0
 requests-toolbelt==0.7.0
-rsa==3.4.2
+rsa==4.1
 six==1.10.0
 tornado==4.4.2
 MySQL-python==1.2.5