diff --git a/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj b/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj
index 84838ac..ac2a870 100644
--- a/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj
+++ b/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj
@@ -10,8 +10,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Aiursoft.AiurObserver.Extensions" Version="8.0.8" />
-    <PackageReference Include="Aiursoft.AiurObserver.WebSocket.Server" Version="8.0.8" />
+    <PackageReference Include="Aiursoft.AiurObserver.Extensions" Version="8.0.9" />
+    <PackageReference Include="Aiursoft.AiurObserver.WebSocket.Server" Version="8.0.9" />
     <PackageReference Include="Aiursoft.InMemoryKvDb" Version="1.0.6" />
     <PackageReference Include="Aiursoft.Scanner" Version="8.0.2" />
     <PackageReference Include="Aiursoft.WebTools" Version="8.0.28" />
diff --git a/tests/Aiursoft.ChessServer.Tests/Aiursoft.ChessServer.Tests.csproj b/tests/Aiursoft.ChessServer.Tests/Aiursoft.ChessServer.Tests.csproj
index 9369143..45a4432 100644
--- a/tests/Aiursoft.ChessServer.Tests/Aiursoft.ChessServer.Tests.csproj
+++ b/tests/Aiursoft.ChessServer.Tests/Aiursoft.ChessServer.Tests.csproj
@@ -14,7 +14,7 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="JunitXml.TestLogger" Version="4.1.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.6.3" />
     <PackageReference Include="MSTest.TestFramework" Version="3.6.3" />
     <PackageReference Include="AngleSharp" Version="1.1.2" />