diff --git a/requirements.txt b/requirements.txt
index 6e6cee9d..a890123a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ charset-normalizer==2.0.9
     # via requests
 click==8.0.3
     # via flask
-cryptography==39.0.1
+cryptography==42.0.4
     # via etesync
 defusedxml==0.7.1
     # via radicale