diff --git a/requirements/dev.txt b/requirements/dev.txt
index 123259b..0875dcd 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -3,7 +3,7 @@ pip==19.3
 watchdog==0.9.0
 flake8==3.7.8
 Sphinx==2.2.0
-cryptography==2.8
+cryptography==44.0.0
 coverage==4.5.4
 pytest==5.2.1
 pytest-cov==2.8.1