diff --git a/requirements.txt b/requirements.txt
index db53fa9..0425f64 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2022.12.7
 cffi==1.15.1
 charset-normalizer==3.0.1
 checkdmarc==4.5.2
-cryptography==39.0.1
+cryptography==42.0.2
 dill==0.3.6
 dnspython==2.3.0
 expiringdict==1.2.2