diff --git a/backend/requirements.txt b/backend/requirements.txt
index e682ef3..408d701 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -18,6 +18,6 @@ pyasn1==0.4.2
 pyasn1-modules==0.2.1
 pytz==2018.4
 requests==2.18.4
-rsa==3.4.2
+rsa==4.1
 six==1.11.0
 urllib3==1.22