diff --git a/requirements.txt b/requirements.txt
index 6225a53..d704349 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ certifi==2017.4.17
 cffi==1.10.0
 chardet==3.0.4
 click==6.7
-cryptography==1.9
+cryptography==3.2
 Django==1.11.2
 django-mailgun==0.9.1
 django-pgjsonb==0.0.25