diff --git a/requirements.txt b/requirements.txt
index 2076535..03b21ea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ certifi==2020.4.5.2
 cffi==1.14.0
 chardet==3.0.4
 click==7.1.2
-cryptography==2.9.2
+cryptography==3.2
 Flask==1.1.2
 googleapis-common-protos==1.52.0
 grpcio==1.29.0