diff --git a/nugget/proto/nugget/app/keymaster/keymaster.options b/nugget/proto/nugget/app/keymaster/keymaster.options
index c9105bd..ad3a0a1 100644
--- a/nugget/proto/nugget/app/keymaster/keymaster.options
+++ b/nugget/proto/nugget/app/keymaster/keymaster.options
@@ -13,8 +13,8 @@
 nugget.app.keymaster.GetBootInfoResponse.boot_key max_size:32
 nugget.app.keymaster.GetBootInfoResponse.boot_hash max_size:32
 nugget.app.keymaster.ProvisionPresharedSecretRequest.preshared_secret max_size:32
-nugget.app.keymaster.StartAttestKeyRequest.not_before max_size:13
-nugget.app.keymaster.StartAttestKeyRequest.not_after max_size:13
+nugget.app.keymaster.StartAttestKeyRequest.not_before max_size:15
+nugget.app.keymaster.StartAttestKeyRequest.not_after max_size:15
 nugget.app.keymaster.ProvisionPresharedSecretResponse.digest max_size:32
 nugget.app.keymaster.ProvisionCertificatesRequest.cert_block max_size: 1024
 nugget.app.keymaster.ProvisionCertificatesRequest.digest max_size: 32
\ No newline at end of file