diff --git a/requirements.txt b/requirements.txt
index e96dc2d..f17473e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ certifi==2022.12.7
 cffi==1.11.2
 chardet==3.0.4
 coverage==4.4.2
-cryptography==2.3
+cryptography==39.0.1
 etesync==0.5.0
 furl==1.0.1
 idna==2.6