diff --git a/9.0/BlazorWebAppWinAuthServer/BlazorWebAppWinAuthServer.csproj b/9.0/BlazorWebAppWinAuthServer/BlazorWebAppWinAuthServer.csproj
index 3a9ae8521..fc1a86e6f 100644
--- a/9.0/BlazorWebAppWinAuthServer/BlazorWebAppWinAuthServer.csproj
+++ b/9.0/BlazorWebAppWinAuthServer/BlazorWebAppWinAuthServer.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.Negotiate" Version="9.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.Negotiate" Version="9.0.18" />
     <PackageReference Include="Microsoft.AspNetCore.Components.QuickGrid" Version="9.0.0" />
   </ItemGroup>