diff --git a/requirements/base.txt b/requirements/base.txt
index 013234b2..52d4b7b1 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -8,7 +8,7 @@ certifi==2018.4.16
 cffi==1.11.5
 chardet==3.0.4
 colorama==0.3.9
-cryptography==2.3
+cryptography==42.0.6
 cx-oracle==6.4.1
 dj-database-url==0.5.0
 django-cas-ng==3.5.9