diff --git a/requirements.txt b/requirements.txt
index ef88d97..9df4264 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ certifi==2018.11.29
 cffi==1.11.5
 chardet==3.0.4
 configparser==3.7.1
-cryptography==2.5
+cryptography==3.2
 enum34==1.1.6
 futures==3.2.0
 idna==2.8