diff --git a/requirements.txt b/requirements.txt
index 3bfbe375d..314184cdc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ pyOpenSSL==20.0.1
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 service-identity==18.1.0
-cryptography==3.4.5
+cryptography==39.0.1
 cffi==1.14.5
 Twisted==22.1.0
 treq==22.1.0