diff --git a/References.Items.props b/References.Items.props
index 579dbba..bb32776 100644
--- a/References.Items.props
+++ b/References.Items.props
@@ -76,14 +76,6 @@
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\Cohtml.Runtime.dll</HintPath>
             <Private>False</Private>
         </Reference>
-        <Reference Include="com.dogu.gamium.engine.unity.runtime">
-            <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\com.dogu.gamium.engine.unity.runtime.dll</HintPath>
-            <Private>False</Private>
-        </Reference>
-        <Reference Include="com.dogu.gamium.engine.unity.runtime.protocol">
-            <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\com.dogu.gamium.engine.unity.runtime.protocol.dll</HintPath>
-            <Private>False</Private>
-        </Reference>
         <Reference Include="Crc32.NET">
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\Crc32.NET.dll</HintPath>
             <Private>False</Private>
@@ -144,10 +136,6 @@
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\MeshBakerCore.dll</HintPath>
             <Private>False</Private>
         </Reference>
-        <Reference Include="Meta.XR.BuildingBlocks">
-            <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\Meta.XR.BuildingBlocks.dll</HintPath>
-            <Private>False</Private>
-        </Reference>
         <Reference Include="Mono.Security">
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\Mono.Security.dll</HintPath>
             <Private>False</Private>
@@ -164,6 +152,10 @@
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\MTJobSystem.dll</HintPath>
             <Private>False</Private>
         </Reference>
+        <Reference Include="NETOpus">
+            <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\NETOpus.dll</HintPath>
+            <Private>False</Private>
+        </Reference>
         <Reference Include="NewBlood.EngineInternals">
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\NewBlood.EngineInternals.dll</HintPath>
             <Private>False</Private>
@@ -180,14 +172,6 @@
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\Oculus.LipSync.dll</HintPath>
             <Private>False</Private>
         </Reference>
-        <Reference Include="Oculus.Platform">
-            <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\Oculus.Platform.dll</HintPath>
-            <Private>False</Private>
-        </Reference>
-        <Reference Include="Oculus.VR">
-            <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\Oculus.VR.dll</HintPath>
-            <Private>False</Private>
-        </Reference>
         <Reference Include="PICO.Platform">
             <HintPath>$(MsBuildThisFileDirectory)\.ManagedLibs\PICO.Platform.dll</HintPath>
             <Private>False</Private>