diff --git a/requirements.txt b/requirements.txt
index ea89818..dbb1e62 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ python-systemd==231
 PyYAML==3.11
 requests==2.9.1
 requests-toolbelt==0.7.0
-rsa==3.4.2
+rsa==4.1
 sendgrid==2.2.1
 six==1.9.0
 smtpapi==0.3.1