diff --git a/Packages/nadena.dev.modular-avatar/Editor/PluginDefinition/PluginDefinition.cs b/Packages/nadena.dev.modular-avatar/Editor/PluginDefinition/PluginDefinition.cs
index e5594c6a..de44edcc 100644
--- a/Packages/nadena.dev.modular-avatar/Editor/PluginDefinition/PluginDefinition.cs
+++ b/Packages/nadena.dev.modular-avatar/Editor/PluginDefinition/PluginDefinition.cs
@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.Immutable;
-using nadena.dev.ndmf;
+using nadena.dev.ndmf;
 using nadena.dev.ndmf.animation;
 using nadena.dev.ndmf.fluent;
 using UnityEngine;