diff --git a/requirements.txt b/requirements.txt
index 5c2d657..3f47478 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ cffi==1.11.5
 chardet==3.0.4
 clyent==1.2.2
 constantly==15.1.0
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 decorator==4.4.0
 defusedxml==0.6.0