diff --git a/src/JT808.Protocol.Benchmark/JT808.Protocol.Benchmark.csproj b/src/JT808.Protocol.Benchmark/JT808.Protocol.Benchmark.csproj
index fb52e82..770fda5 100644
--- a/src/JT808.Protocol.Benchmark/JT808.Protocol.Benchmark.csproj
+++ b/src/JT808.Protocol.Benchmark/JT808.Protocol.Benchmark.csproj
@@ -17,8 +17,8 @@
     <PackageReference Include="BenchmarkDotNet" Version="0.12.0" />
     <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.12.0" />
     <PackageReference Include="NETStandard.Library" Version="2.0.3" />
-    <PackageReference Include="System.Buffers" Version="4.5.0" />
-    <PackageReference Include="System.Memory" Version="4.5.3" />
+    <PackageReference Include="System.Buffers" Version="4.5.1" />
+    <PackageReference Include="System.Memory" Version="4.5.4" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\JT808.Protocol\JT808.Protocol.csproj" />
diff --git a/src/JT808.Protocol.Test/JT808.Protocol.Test.csproj b/src/JT808.Protocol.Test/JT808.Protocol.Test.csproj
index 4f51e08..5f65789 100644
--- a/src/JT808.Protocol.Test/JT808.Protocol.Test.csproj
+++ b/src/JT808.Protocol.Test/JT808.Protocol.Test.csproj
@@ -115,7 +115,7 @@
     <PackageReference Include="NETStandard.Library" Version="2.0.3" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="System.Drawing.Common" Version="4.7.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.2" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.3" />
     <PackageReference Include="System.Runtime.InteropServices.RuntimeInformation" Version="4.3.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.console" Version="2.4.1">
diff --git a/src/JT808.Protocol.sln b/src/JT808.Protocol.sln
index 47ea931..99977ef 100644
--- a/src/JT808.Protocol.sln
+++ b/src/JT808.Protocol.sln
@@ -9,7 +9,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "JT808.Protocol.Test", "JT80
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{E6296ADE-B239-4A4B-ACDA-B80C0A61399B}"
 	ProjectSection(SolutionItems) = preProject
-		..\.travis.yml = ..\.travis.yml
 		..\README.md = ..\README.md
 	EndProjectSection
 EndProject
diff --git a/src/JT808.Protocol/JT808.Protocol.csproj b/src/JT808.Protocol/JT808.Protocol.csproj
index 2f3ac8b..b9f89a7 100644
--- a/src/JT808.Protocol/JT808.Protocol.csproj
+++ b/src/JT808.Protocol/JT808.Protocol.csproj
@@ -14,7 +14,7 @@
     <licenseUrl>https://github.com/SmallChi/JT808/blob/master/LICENSE</licenseUrl>
     <license>https://github.com/SmallChi/JT808/blob/master/LICENSE</license>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
-    <Version>2.2.8</Version>
+    <Version>2.2.9</Version>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
@@ -58,9 +58,9 @@
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageReference Include="System.Buffers" Version="4.5.0" />
+    <PackageReference Include="System.Buffers" Version="4.5.1" />
     <PackageReference Include="System.Dynamic.Runtime" Version="4.3.0" />
-    <PackageReference Include="System.Memory" Version="4.5.3" />
+    <PackageReference Include="System.Memory" Version="4.5.4" />
     <PackageReference Include="System.Reflection.Extensions" Version="4.3.0" />
   </ItemGroup>
 
@@ -71,7 +71,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.7.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.1.2" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.1.3" />
     <PackageReference Include="System.Text.Json" Version="4.7.1" />
   </ItemGroup>