diff --git a/requirements.txt b/requirements.txt
index eb1e79dc..1dd5b68c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,6 +26,6 @@ tftpy
 # some freezegun versions broken
 freezegun!=0.3.13
 pytest
-cryptography==3.4.8
+cryptography==44.0.0
 sphinx_rtd_theme
 psutil