diff --git a/EnvelopeGenerator.WebUI/EnvelopeGenerator.WebUI/Program.cs b/EnvelopeGenerator.WebUI/EnvelopeGenerator.WebUI/Program.cs
index d96b7f29..fd03410c 100644
--- a/EnvelopeGenerator.WebUI/EnvelopeGenerator.WebUI/Program.cs
+++ b/EnvelopeGenerator.WebUI/EnvelopeGenerator.WebUI/Program.cs
@@ -16,7 +16,7 @@ builder.Services.AddReverseProxy()
     .LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"));
 
 // DevExpress Server-Side Services (CRITICAL for DxPdfViewer)
-builder.Services.AddDevExpressBlazor(configure => configure.BootstrapVersion = BootstrapVersion.v5);
+builder.Services.AddDevExpressBlazor();
 builder.Services.AddDevExpressServerSideBlazorPdfViewer();
 
 // Configuration Options