diff --git a/requirements.txt b/requirements.txt
index 88bb47e..9492695 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ asn1crypto==0.24.0
 certifi==2019.3.9
 cffi==1.12.2
 chardet==3.0.4
-cryptography==3.2
+cryptography==3.3.2
 decorator==4.4.0
 http-ece==1.1.0
 idna==2.8