diff --git a/requirements_dev.txt b/requirements_dev.txt
index 828fd59..c50220f 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -5,7 +5,7 @@ watchdog==4.0.1
 flake8==7.0.0
 tox==4.15.0
 coverage==7.5.1
-cryptography==42.0.8
+cryptography==43.0.0
 Sphinx==7.3.7
 PyYAML==6.0.1
 pytest==8.2.1