diff --git a/requirements.txt b/requirements.txt
index 76aae7b..787da49 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ cffi==1.10.0
 chardet==3.0.4
 click==6.7
 constantly==15.1.0
-cryptography==1.9
+cryptography==3.2
 cssselect==1.0.1
 Flask==0.12.2
 hyperlink==17.2.1