diff --git a/requirements.txt b/requirements.txt
index 97b533f..b8160d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ certifi==2020.6.20
 cffi==1.14.3
 chardet==3.0.4
 click==7.1.2
-cryptography==3.3.2
+cryptography==39.0.1
 ecdsa==0.13.3
 Flask==1.1.2
 idna==2.10