diff --git a/requirements.txt b/requirements.txt
index 92e5691d..066e3d58 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 argo-ams-library
 certifi<2020.4.5.2  # Used by AMS (via requests), 2020.4.5.2 dropped support for Python 2
 pyopenssl >=19.1.0, <=21.0.0  # 22.0.0 dropped support for Python 2
-cryptography==3.3.2  # Crypto dropped support for Python 2 after 3.3
+cryptography==43.0.0  # Crypto dropped support for Python 2 after 3.3
 stomp.py<5.0.0
 python-daemon<=2.3.0  # 2.3.1 dropped support for Python 2
 python-ldap<3.4.0  # python-ldap-3.4.0 dropped support for Python 2