diff --git a/requirements.txt b/requirements.txt
index e26f959..ccfee35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2018.1.18
 cffi==1.11.5
 chardet==3.0.4
 click==6.7
-cryptography==2.2.2
+cryptography==3.2
 Flask==0.12.2
 Flask-Cors==3.0.3
 Flask-SQLAlchemy==2.3.2