diff --git a/requirements.txt b/requirements.txt
index 16b3728..ef75364 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ asn1crypto==0.24.0
 certifi==2019.6.16
 cffi==1.12.3
 chardet==3.0.4
-cryptography==2.7
+cryptography==41.0.3
 idna==2.8
 oauthlib==3.0.2
 pycparser==2.19