diff --git a/requirements.txt b/requirements.txt
index 17781da..86c90f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ cffi==1.14.3
 chardet==4.0.0
 configparser==4.0.2
 contextlib2==0.6.0.post1
-cryptography==2.6.1
+cryptography==3.3.2
 enum34==1.1.6
 funcsigs==1.0.2
 future==0.17.1