diff --git a/requirements.txt b/requirements.txt
index 1823be7..31156cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 asn1crypto==0.24.0
 cffi==1.12.3
 Click==7.0
-cryptography==2.7
+cryptography==3.2
 enum34==1.1.6
 Flask==1.1.1
 Flask-API==1.1