diff --git a/requirements.txt b/requirements.txt
index 99ef192..5b761de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ asn1crypto==0.24.0
 backports.shutil-get-terminal-size==1.0.0
 cffi==1.11.4
 click==6.7
-cryptography==2.7
+cryptography==3.2
 decorator==4.2.1
 enum34==1.1.6
 Flask==1.0.3