diff --git a/requirements.txt b/requirements.txt
index 5a6b496..c51c230 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 asn1crypto==0.24.0
 cffi==1.14.0
 click==7.1.2
-cryptography==2.6.1
+cryptography==3.3.2
 entrypoints==0.3
 Flask==1.1.2
 Flask-Cors==3.0.8