diff --git a/kms/api-client/requirements.txt b/kms/api-client/requirements.txt
index a9b47ef6cca..b62b20aa4b1 100644
--- a/kms/api-client/requirements.txt
+++ b/kms/api-client/requirements.txt
@@ -1,2 +1,2 @@
 google-cloud-kms==1.2.1
-cryptography==2.8
+cryptography==41.0.0