diff --git a/Directory.Build.props b/Directory.Build.props
index 391ca7e..f66d363 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,6 +1,6 @@
 <Project>
 	<PropertyGroup>
-		<Version>2.0.1</Version>
+		<Version>2.0.2-SmartIPAddress</Version>
 		<Nullable>enable</Nullable>
 		<Description>github加速神器</Description>
 		<Copyright>https://github.com/dotnetcore/FastGithub</Copyright>
diff --git a/FastGithub.DomainResolve/DomainResolveHostedService.cs b/FastGithub.DomainResolve/DomainResolveHostedService.cs
index b15982e..dfab162 100644
--- a/FastGithub.DomainResolve/DomainResolveHostedService.cs
+++ b/FastGithub.DomainResolve/DomainResolveHostedService.cs
@@ -12,7 +12,7 @@ namespace FastGithub.DomainResolve
     {
         private readonly DnscryptProxy dnscryptProxy;
         private readonly DnsClient dnsClient;
-        private readonly TimeSpan pingPeriodTimeSpan = TimeSpan.FromSeconds(30d);
+        private readonly TimeSpan pingPeriodTimeSpan = TimeSpan.FromSeconds(10d);
 
         /// <summary>
         /// 域名解析后台服务