diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/URP/ShaderUtil/Lit/UrpLitContext.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/URP/ShaderUtil/Lit/UrpLitContext.cs
index 5d68f0558..da8b430b2 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/URP/ShaderUtil/Lit/UrpLitContext.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/URP/ShaderUtil/Lit/UrpLitContext.cs
@@ -15,7 +15,7 @@ namespace UniGLTF
     /// - Environment Reflections Toggle
     /// - Sorting Priority
     /// </summary>
-    public sealed class UrpLitContext
+    public class UrpLitContext
     {
         private readonly Material _mat;