diff --git a/kms/snippets/requirements.txt b/kms/snippets/requirements.txt
index c10519b98572..aaf2ea5f26ef 100644
--- a/kms/snippets/requirements.txt
+++ b/kms/snippets/requirements.txt
@@ -1,2 +1,2 @@
 google-cloud-kms==1.4.0
-cryptography==2.8
+cryptography==2.9