diff --git a/src/Directory.Build.targets b/src/Directory.Build.targets
index f45980c5..93fb2ee1 100644
--- a/src/Directory.Build.targets
+++ b/src/Directory.Build.targets
@@ -6,7 +6,7 @@
     <UnoExtensionsVersion Condition="'$(UnoExtensionsVersion)' == ''">4.1.0-dev.82</UnoExtensionsVersion>
     <UnoThemesVersion Condition="'$(UnoThemesVersion)' == ''">4.2.0-dev.30</UnoThemesVersion>
     <UnoToolkitVersion Condition="'$(UnoToolkitVersion)' == ''">5.2.0-dev.56</UnoToolkitVersion>
-    <UnoMarkupVersion Condition="'$(UnoMarkupVersion)' == ''">5.2.0-dev.61</UnoMarkupVersion>
+    <UnoMarkupVersion Condition="'$(UnoMarkupVersion)' == ''">5.3.0-dev.11</UnoMarkupVersion>
     <UnoWasmBootstrapVersionNet8 Condition="'$(UnoWasmBootstrapVersionNet8)' == ''">8.0.11</UnoWasmBootstrapVersionNet8>
     <UnoWasmBootstrapVersionNet9 Condition="'$(UnoWasmBootstrapVersionNet9)' == ''">9.0.0-dev.39</UnoWasmBootstrapVersionNet9>
     <UnoExtensionsLoggingVersion Condition="'$(UnoExtensionsLoggingVersion)' == ''">1.7.0</UnoExtensionsLoggingVersion>
diff --git a/src/Uno.Templates/content/unoapp/MyExtensionsApp.1/Presentation/Shell.xaml.cs b/src/Uno.Templates/content/unoapp/MyExtensionsApp.1/Presentation/Shell.xaml.cs
index 1df6493d..a495695c 100644
--- a/src/Uno.Templates/content/unoapp/MyExtensionsApp.1/Presentation/Shell.xaml.cs
+++ b/src/Uno.Templates/content/unoapp/MyExtensionsApp.1/Presentation/Shell.xaml.cs
@@ -12,7 +12,7 @@ public Shell()
                 .Child(
     #if useToolkit
                     new ExtendedSplashScreen()
-                        .Assign(out var splash)
+                        .Name(out var splash)
                         .HorizontalAlignment(HorizontalAlignment.Stretch)
                         .VerticalAlignment(VerticalAlignment.Stretch)
                         .HorizontalContentAlignment(HorizontalAlignment.Stretch)
@@ -30,7 +30,7 @@ public Shell()
                         )
     #else
                     new ContentControl()
-                        .Assign(out var splash)
+                        .Name(out var splash)
                         .HorizontalAlignment(HorizontalAlignment.Stretch)
                         .VerticalAlignment(VerticalAlignment.Stretch)
                         .HorizontalContentAlignment(HorizontalAlignment.Stretch)