diff --git a/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/ITextureExporter.cs b/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/ITextureExporter.cs
index e6bb6f0a0..bb132fcae 100644
--- a/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/ITextureExporter.cs
+++ b/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/ITextureExporter.cs
@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System;
 using UnityEngine;
 
 namespace VRMShaders
@@ -8,7 +8,7 @@ namespace VRMShaders
     ///
     /// glTF 拡張で Texture の用途を増やす必要がある場合は、この interface を継承して実装すればよい。
     /// </summary>
-    public interface ITextureExporter
+    public interface ITextureExporter: IDisposable
     {
         /// <summary>
         /// 指定の Texture を、 sRGB 色空間の値を持つ Texture に出力するように指示する。
diff --git a/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/TextureExporter.cs b/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/TextureExporter.cs
index 3b4229dc6..d2f1da2df 100644
--- a/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/TextureExporter.cs
+++ b/Assets/VRMShaders/GLTF/IO/Runtime/Texture/Exporter/TextureExporter.cs
@@ -8,7 +8,7 @@ namespace VRMShaders
     /// glTF にエクスポートする変換方式を蓄えて index を確定させる。
     /// Exporter の最後で Export() でまとめて変換する。
     /// </summary>
-    public sealed class TextureExporter : IDisposable, ITextureExporter
+    public sealed class TextureExporter : ITextureExporter
     {
         private readonly ITextureSerializer _textureSerializer;
         private readonly List<TextureExportParam> _exportingList = new List<TextureExportParam>();