diff --git a/06.PVE用模板克隆虚拟机.md b/06.PVE用模板克隆虚拟机.md
index c6e45f1..13d73da 100644
--- a/06.PVE用模板克隆虚拟机.md
+++ b/06.PVE用模板克隆虚拟机.md
@@ -276,10 +276,10 @@ bind [::]:53
 bind-tcp [::]:53
 
 serve-expired yes
-serve-expired-ttl 86400
+serve-expired-ttl 57600
 serve-expired-reply-ttl 3
 prefetch-domain yes
-serve-expired-prefetch-time 43200
+serve-expired-prefetch-time 28800
 
 speed-check-mode ping,tcp:80,tcp:443
 
diff --git a/src/debian_smartdns.conf b/src/debian_smartdns.conf
index 0f09c8c..db13e43 100644
--- a/src/debian_smartdns.conf
+++ b/src/debian_smartdns.conf
@@ -19,10 +19,10 @@ bind [::]:53
 bind-tcp [::]:53
 
 serve-expired yes
-serve-expired-ttl 86400
+serve-expired-ttl 57600
 serve-expired-reply-ttl 3
 prefetch-domain yes
-serve-expired-prefetch-time 43200
+serve-expired-prefetch-time 28800
 
 speed-check-mode ping,tcp:80,tcp:443