diff --git a/requirements.txt b/requirements.txt
index 47338d7..4b6ac72 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ azure-mgmt-resource==10.1.0
 azure-mgmt-dns>=3.0.0
 configobj==5.0.6
 coverage==5.2.1
-cryptography==3.2
+cryptography==3.3.2
 decorator==4.4.2
 docutils==0.16
 entrypoints==0.3