diff --git a/requirements.txt b/requirements.txt
index 4301c36..71a58a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ requests==2.13.0
 
 # Secondary requirements
 cffi==1.10.0
-cryptography==1.8.1
+cryptography==2.0.3
 idna==2.5
 pyasn1==0.2.3
 pycparser==2.17