diff --git a/requirements.txt b/requirements.txt
index 930b60e..bd2fabf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ certifi==2018.8.24
 cffi==1.13.2
 chardet==3.0.4
 click==7.0
-cryptography==2.3.1
+cryptography==46.0.5
 defusedxml==0.5.0
 dnspython==1.15.0
 exchangelib==1.12.0