diff --git a/web-app-aspnet/WebApp.csproj b/web-app-aspnet/WebApp.csproj
index f02f53e..102c25f 100644
--- a/web-app-aspnet/WebApp.csproj
+++ b/web-app-aspnet/WebApp.csproj
@@ -6,8 +6,8 @@
     <RootNamespace>sign_in_webapp</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Identity.Web" Version="3.8.0" />
-    <PackageReference Include="Microsoft.Identity.Web.UI" Version="3.8.0" />
+    <PackageReference Include="Microsoft.Identity.Web" Version="4.9.0" />
+    <PackageReference Include="Microsoft.Identity.Web.UI" Version="4.9.0" />
     <PackageReference Include="Microsoft.Identity.Web.DownstreamApi" Version="3.8.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file