diff --git a/packages/google-cloud-kms/samples/attestations/requirements.txt b/packages/google-cloud-kms/samples/attestations/requirements.txt
index 9f3e724fee12..c8639da017b8 100644
--- a/packages/google-cloud-kms/samples/attestations/requirements.txt
+++ b/packages/google-cloud-kms/samples/attestations/requirements.txt
@@ -1,2 +1,2 @@
-cryptography==2.9.2
+cryptography==3.0
 pem==20.1.0
diff --git a/packages/google-cloud-kms/samples/snippets/requirements.txt b/packages/google-cloud-kms/samples/snippets/requirements.txt
index 6e2cc2a4558b..f829e4a9caf6 100644
--- a/packages/google-cloud-kms/samples/snippets/requirements.txt
+++ b/packages/google-cloud-kms/samples/snippets/requirements.txt
@@ -1,2 +1,2 @@
 google-cloud-kms==1.4.0
-cryptography==2.9.2
+cryptography==3.0