diff --git a/kms/attestations/requirements.txt b/kms/attestations/requirements.txt
index 350efff8985d..3f688a1c2cf6 100644
--- a/kms/attestations/requirements.txt
+++ b/kms/attestations/requirements.txt
@@ -1,2 +1,2 @@
 cryptography==3.4.7
-pem==21.1.0
+pem==21.2.0