diff --git a/requirements/dev.txt b/requirements/dev.txt
index ff9089c..8fa1578 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -6,5 +6,5 @@ flake8==3.8.3
 tox==3.19.0
 coverage==5.2.1
 Sphinx==3.2.0
-cryptography==3.0
+cryptography==43.0.3
 PyYAML==5.3.1