diff --git a/requirements.txt b/requirements.txt
index 357ee4d..6b1c32f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ cheroot==8.5.2
 CherryPy==18.6.1
 contextlib2==0.5.5
 coverage==5.5
-cryptography==3.4.7
+cryptography==39.0.1
 cycler==0.10.0
 iniconfig==1.1.1
 isort==4.3.4