diff --git a/NewLife.NetPing/NewLife.NetPing.csproj b/NewLife.NetPing/NewLife.NetPing.csproj
index 5890e04..c3edb4f 100644
--- a/NewLife.NetPing/NewLife.NetPing.csproj
+++ b/NewLife.NetPing/NewLife.NetPing.csproj
@@ -1,10 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.1;netstandard2.0;net461</TargetFrameworks>
+    <TargetFrameworks>netstandard2.1;netstandard2.0;net45</TargetFrameworks>
     <AssemblyTitle>设备网络心跳驱动</AssemblyTitle>
     <Description>IoT驱动，通过Ping探测到目标设备的网络情况，并收集延迟数据</Description>
     <Company>新生命开发团队</Company>
-    <Copyright>©2002-2023 新生命开发团队</Copyright>
+    <Copyright>©2002-2024 新生命开发团队</Copyright>
     <VersionPrefix>1.1</VersionPrefix>
     <VersionSuffix>$([System.DateTime]::Now.ToString(`yyyy.MMdd`))</VersionSuffix>
     <Version>$(VersionPrefix).$(VersionSuffix)</Version>
@@ -29,11 +29,11 @@
     <PackageTags>物联网;IoT;边缘计算;Edge;新生命团队;NewLife;PLC;$(AssemblyName)</PackageTags>
     <PackageReleaseNotes></PackageReleaseNotes>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+    <PackageReadmeFile>Readme.MD</PackageReadmeFile>
   </PropertyGroup>
 
   <ItemGroup>
@@ -44,7 +44,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="NewLife.IoT" Version="1.9.2023.1201" />
+    <PackageReference Include="NewLife.IoT" Version="2.1.2024.203" />
   </ItemGroup>
 
   <ItemGroup>