diff --git a/requirements.txt b/requirements.txt
index 36dae17..62d3341 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ python-jwt==2.0.1
 pytz==2018.5
 requests==2.11.1
 requests-toolbelt==0.7.0
-rsa==3.4.2
+rsa==4.1
 six==1.11.0
 urllib3==1.23
 Werkzeug==0.14.1