diff --git a/requirements.txt b/requirements.txt
index b1d6127..08a676d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ certifi==2020.4.5.1
 cffi==1.14.0
 chardet==3.0.4
 click==7.1.2
-cryptography==2.9.2
+cryptography==3.2
 ecdsa==0.15
 entrypoints==0.3
 flake8==3.7.9