diff --git a/requirements.txt b/requirements.txt
index 672b3c3..2007b63 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ pyparsing==2.2.0
 pyreadline==2.1
 pytz==2018.3
 requests==2.18.4
-rsa==3.4.2
+rsa==4.7
 six==1.11.0
 urllib3==1.22
 Werkzeug==0.14.1