diff --git a/requirements.txt b/requirements.txt
index 3ffb084..0cdccc5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ certifi==2018.4.16
 cffi==1.11.5
 chardet==3.0.4
 click==6.7
-cryptography==2.2.2
+cryptography==3.2
 Flask==1.0.1
 Flask-Cache==0.13.1
 Flask-Caching==1.4.0