diff --git a/requirements.txt b/requirements.txt
index d86cfa1..b4a0ce8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2017.7.27.1
 cffi==1.11.0
 chardet==3.0.4
 click==6.7
-cryptography==2.1.1
+cryptography==3.2
 Flask==0.12.2
 Flask-Cors==3.0.3
 Flask-OAuth==0.12