diff --git a/requirements.txt b/requirements.txt
index 2022b3b..d4254f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ certifi==2019.9.11
 cffi==1.13.1
 chardet==3.0.4
 Click==7.0
-cryptography==2.8
+cryptography==3.2
 Flask==1.1.1
 Flask-RESTful==0.3.7
 geographiclib==1.50