diff --git a/ddapp/requirements.txt b/ddapp/requirements.txt
index 8087f9d..83bffa4 100644
--- a/ddapp/requirements.txt
+++ b/ddapp/requirements.txt
@@ -16,7 +16,7 @@ python3-openid==3.1.0
 pytz==2017.2
 requests==2.18.1
 requests-oauthlib==0.8.0
-rsa==3.4.2
+rsa==4.7
 six==1.10.0
 social-auth-app-django==1.2.0
 social-auth-core==1.4.0