diff --git a/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj b/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj
index 4c6874a..ffc2283 100644
--- a/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj
+++ b/src/Aiursoft.ChessServer/Aiursoft.ChessServer.csproj
@@ -16,6 +16,6 @@
     <PackageReference Include="Aiursoft.Scanner" Version="9.0.3" />
     <PackageReference Include="Aiursoft.WebTools" Version="9.0.2" />
     <PackageReference Include="Gera.Chess" Version="1.2.0" />
-    <PackageReference Include="LynxChess.Lynx" Version="1.8.0" />
+    <PackageReference Include="LynxChess.Lynx" Version="1.9.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file