diff --git a/requirements_dev.txt b/requirements_dev.txt
index 583a0ec..e8f261f 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,6 +1,6 @@
 bumpversion==0.6.0
 coverage==7.2.7
-cryptography==42.0.7
+cryptography==43.0.1
 flake8==5.0.4  # pyup: ignore, latest version does not with python 3.7
 PyYAML==6.0.1
 Sphinx==4.3.2  # pyup: ignore, latest version does not work with python 3.7