diff --git a/kms/attestations/requirements.txt b/kms/attestations/requirements.txt
index 1c2e2d8273bd..273aa982d101 100644
--- a/kms/attestations/requirements.txt
+++ b/kms/attestations/requirements.txt
@@ -1,2 +1,2 @@
-cryptography==3.1
+cryptography==3.1.1
 pem==20.1.0
diff --git a/kms/snippets/requirements.txt b/kms/snippets/requirements.txt
index f5ec4487a25e..9171879b2eb1 100644
--- a/kms/snippets/requirements.txt
+++ b/kms/snippets/requirements.txt
@@ -1,2 +1,2 @@
 google-cloud-kms==2.0.0
-cryptography==3.1
\ No newline at end of file
+cryptography==3.1.1
\ No newline at end of file