diff --git a/requirements.txt b/requirements.txt
index 4035bdc..60ba595 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ certifi==2020.4.5.1
 cffi==1.14.0
 chardet==3.0.4
 click==7.1.2
-cryptography==2.9.2
+cryptography==39.0.1
 gast==0.2.2
 google-auth==1.14.1
 google-auth-oauthlib==0.4.1