diff --git a/requirements.txt b/requirements.txt
index bb55b0253..4de2d9e12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+cryptography==1.4
 Django==1.9.7
 django-debug-toolbar==1.4
 django-filter==0.13.0