diff --git a/simples/JT808.Gateway.SimpleClient/JT808.Gateway.SimpleClient.csproj b/simples/JT808.Gateway.SimpleClient/JT808.Gateway.SimpleClient.csproj
index ecf150a..b1f2173 100644
--- a/simples/JT808.Gateway.SimpleClient/JT808.Gateway.SimpleClient.csproj
+++ b/simples/JT808.Gateway.SimpleClient/JT808.Gateway.SimpleClient.csproj
@@ -6,8 +6,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JT808.Gateway.Abstractions" Version="1.0.0-preview6" />
-    <PackageReference Include="JT808.Gateway.Client" Version="1.0.0-preview6" />
+    <PackageReference Include="JT808.Gateway.Abstractions" Version="1.0.0-preview7" />
+    <PackageReference Include="JT808.Gateway.Client" Version="1.0.0-preview7" />
     <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="3.1.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.1" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="3.1.1" />
diff --git a/simples/JT808.Gateway.SimpleServer/JT808.Gateway.SimpleServer.csproj b/simples/JT808.Gateway.SimpleServer/JT808.Gateway.SimpleServer.csproj
index 8d8f2e9..e5b8757 100644
--- a/simples/JT808.Gateway.SimpleServer/JT808.Gateway.SimpleServer.csproj
+++ b/simples/JT808.Gateway.SimpleServer/JT808.Gateway.SimpleServer.csproj
@@ -5,13 +5,13 @@
     <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="JT808.Gateway" Version="1.0.0-preview6" />
-    <PackageReference Include="JT808.Gateway.MsgIdHandler" Version="1.0.0-preview6" />
-    <PackageReference Include="JT808.Gateway.MsgLogging" Version="1.0.0-preview6" />
-    <PackageReference Include="JT808.Gateway.ReplyMessage" Version="1.0.0-preview6" />
-    <PackageReference Include="JT808.Gateway.SessionNotice" Version="1.0.0-preview6" />
-    <PackageReference Include="JT808.Gateway.Traffic" Version="1.0.0-preview6" />
-    <PackageReference Include="JT808.Gateway.Transmit" Version="1.0.0-preview6" />
+    <PackageReference Include="JT808.Gateway" Version="1.0.0-preview7" />
+    <PackageReference Include="JT808.Gateway.MsgIdHandler" Version="1.0.0-preview7" />
+    <PackageReference Include="JT808.Gateway.MsgLogging" Version="1.0.0-preview7" />
+    <PackageReference Include="JT808.Gateway.ReplyMessage" Version="1.0.0-preview7" />
+    <PackageReference Include="JT808.Gateway.SessionNotice" Version="1.0.0-preview7" />
+    <PackageReference Include="JT808.Gateway.Traffic" Version="1.0.0-preview7" />
+    <PackageReference Include="JT808.Gateway.Transmit" Version="1.0.0-preview7" />
     <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="3.1.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.1" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="3.1.1" />