diff --git a/src/RedHttpServer/RedHttpServer.csproj b/src/RedHttpServer/RedHttpServer.csproj
index 1c757ab..c481608 100644
--- a/src/RedHttpServer/RedHttpServer.csproj
+++ b/src/RedHttpServer/RedHttpServer.csproj
@@ -44,6 +44,6 @@ Suppress OperationCanceledException in ws handler </PackageReleaseNotes>
     <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.WebSockets" Version="2.2.1" />
-    <PackageReference Include="System.Text.Json" Version="4.7.1" />
+    <PackageReference Include="System.Text.Json" Version="5.0.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file