diff --git a/requirements.txt b/requirements.txt
index 4453de8..9610e13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ pyasn1==0.1.9
 pyasn1-modules==0.0.8
 pycparser==2.17
 pytz==2016.10
-rsa==3.4.2
+rsa==4.1
 simplejson==3.10.0
 six==1.10.0
 uritemplate==3.0.0