diff --git a/requirements.txt b/requirements.txt
index d38007f..d23c174 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2019.6.16
 cffi==1.12.3
 chardet==3.0.4
 crypto==1.4.1
-cryptography==2.7
+cryptography==3.2
 enum34==1.1.6
 idna==2.8
 ipaddress==1.0.22