diff --git a/requirements.txt b/requirements.txt
index 9c366ee..81c6d91 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ colorama==0.3.7
 command-not-found==0.3
 configobj==5.0.6
 constantly==15.1.0
-cryptography==2.1.4
+cryptography==2.3
 cupshelpers==1.0
 cvxpy==1.0.25
 cycler==0.10.0