diff --git a/requirements.txt b/requirements.txt
index 0b3c67b70c3e89fd6d1b3e68b859bb860334a959..7bef54325884425f38d8c3ac280c8febfa6afc0b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ click==6.7
 colorama==0.3.9
 contextlib2==0.5.5
 croniter==0.3.25
-cryptography==1.9
+cryptography==2.4.2
 decorator==4.3.0          # via retry
 defusedxml==0.5.0         # via python3-openid
 et-xmlfile==1.0.1         # via openpyxl
diff --git a/setup.py b/setup.py
index 53804ad09240c7824b76c0ca467af9f2f4692d7a..c0f2b201b90532ed7a5a2186c364157db36f9315 100644
--- a/setup.py
+++ b/setup.py
@@ -58,7 +58,7 @@ setup(
         'click>=6.0, <7.0.0',  # click >=7 forces "-" instead of "_"
         'colorama',
         'contextlib2',
-        'cryptography',
+        'cryptography>=2.4.2',
         'flask>=1.0.0, <2.0.0',
         'flask-appbuilder>=1.12.1, <2.0.0',
         'flask-caching',