diff --git a/sandbox/OpenIddict.Sandbox.Console.Client/OpenIddict.Sandbox.Console.Client.csproj b/sandbox/OpenIddict.Sandbox.Console.Client/OpenIddict.Sandbox.Console.Client.csproj
index d00328f7..b6c184db 100644
--- a/sandbox/OpenIddict.Sandbox.Console.Client/OpenIddict.Sandbox.Console.Client.csproj
+++ b/sandbox/OpenIddict.Sandbox.Console.Client/OpenIddict.Sandbox.Console.Client.csproj
@@ -3,7 +3,6 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFrameworks>net48;net8.0</TargetFrameworks>
-    <EnablePreviewFeatures>true</EnablePreviewFeatures>
     <IsShipping>false</IsShipping>
     <SignAssembly>false</SignAssembly>
   </PropertyGroup>
diff --git a/sandbox/OpenIddict.Sandbox.WinForms.Client/OpenIddict.Sandbox.WinForms.Client.csproj b/sandbox/OpenIddict.Sandbox.WinForms.Client/OpenIddict.Sandbox.WinForms.Client.csproj
index 84890b02..5bedbe98 100644
--- a/sandbox/OpenIddict.Sandbox.WinForms.Client/OpenIddict.Sandbox.WinForms.Client.csproj
+++ b/sandbox/OpenIddict.Sandbox.WinForms.Client/OpenIddict.Sandbox.WinForms.Client.csproj
@@ -3,7 +3,6 @@
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
     <TargetFrameworks>net48;net8.0-windows7.0</TargetFrameworks>
-    <EnablePreviewFeatures>true</EnablePreviewFeatures>
     <EnableWindowsTargeting>true</EnableWindowsTargeting>
     <UseWindowsForms>true</UseWindowsForms>
     <IsShipping>false</IsShipping>
diff --git a/sandbox/OpenIddict.Sandbox.Wpf.Client/OpenIddict.Sandbox.Wpf.Client.csproj b/sandbox/OpenIddict.Sandbox.Wpf.Client/OpenIddict.Sandbox.Wpf.Client.csproj
index 1b606c7a..0b06bc73 100644
--- a/sandbox/OpenIddict.Sandbox.Wpf.Client/OpenIddict.Sandbox.Wpf.Client.csproj
+++ b/sandbox/OpenIddict.Sandbox.Wpf.Client/OpenIddict.Sandbox.Wpf.Client.csproj
@@ -3,7 +3,6 @@
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
     <TargetFrameworks>net48;net8.0-windows10.0.17763</TargetFrameworks>
-    <EnablePreviewFeatures>true</EnablePreviewFeatures>
     <EnableWindowsTargeting>true</EnableWindowsTargeting>
     <UseWPF>true</UseWPF>
     <IsShipping>false</IsShipping>