diff --git a/bundles/bind/metadata.py b/bundles/bind/metadata.py
index 28d18d3..d193e01 100644
--- a/bundles/bind/metadata.py
+++ b/bundles/bind/metadata.py
@@ -212,7 +212,7 @@ def generate_keys(metadata):
                             'token':repo.libs.hmac.hmac_sha512(
                                 key,
                                 str(repo.vault.random_bytes_as_base64_for(
-                                    f"{metadata.get('id')} bind key {key}",
+                                    f"{metadata.get('id')} bind key {key} 20250713",
                                     length=32,
                                 )),
                             )
diff --git a/bundles/letsencrypt/README.md b/bundles/letsencrypt/README.md
index 1364f92..1b71c2b 100644
--- a/bundles/letsencrypt/README.md
+++ b/bundles/letsencrypt/README.md
@@ -5,5 +5,5 @@ printf "server 127.0.0.1
 zone acme.resolver.name.
 update add _acme-challenge.ckn.li.acme.resolver.name. 600 IN TXT "hello"
 send
-" | nsupdate -y hmac-sha512:acme:Y9BHl85l352BGZDXa/vg90hh2+5PYe4oJxpkq/oQvIODDkW8bAyQSFr0gKQQxjyIOyYlTjf0MGcdWFv46G/3Rg==
+" | nsupdate -y hmac-sha512:acme:XXXXXX
 ```