diff --git a/requirements/development.txt b/requirements/development.txt
index c16a092..3a2e9ea 100644
--- a/requirements/development.txt
+++ b/requirements/development.txt
@@ -2,7 +2,7 @@
 
 bumpversion==0.5.3
 watchdog==0.8.3
-cryptography==2.1.4
+cryptography==2.3
 PyYAML==3.12
 coverage==4.4.2
 pep8==1.7.1