diff --git a/Experimental/Experimental.csproj b/Experimental/Experimental.csproj
index 58198269..1a9baf80 100644
--- a/Experimental/Experimental.csproj
+++ b/Experimental/Experimental.csproj
@@ -86,6 +86,9 @@
     <Reference Include="System.Runtime.Serialization" />
     <Reference Include="System.Numerics" />
     <Reference Include="System.Runtime.Serialization" />
+    <Reference Include="System.Threading.Tasks.Extensions, Version=4.2.4.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Threading.Tasks.Extensions.4.6.3\lib\net462\System.Threading.Tasks.Extensions.dll</HintPath>
+    </Reference>
     <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Xaml" />
     <Reference Include="System.Xml.Linq" />
@@ -94,8 +97,8 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
     <Reference Include="WindowsBase" />
-    <Reference Include="ZstdNet, Version=1.5.7.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\ZstdNet.1.5.7\lib\netstandard2.0\ZstdNet.dll</HintPath>
+    <Reference Include="ZstdSharp, Version=0.8.7.0, Culture=neutral, PublicKeyToken=8d151af33a4ad5cf, processorArchitecture=MSIL">
+      <HintPath>..\packages\ZstdSharp.Port.0.8.7\lib\net462\ZstdSharp.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
@@ -189,7 +192,5 @@ exit 0</PreBuildEvent>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
     <Error Condition="!Exists('..\packages\Stub.System.Data.SQLite.Core.NetFramework.1.0.119.0\build\net46\Stub.System.Data.SQLite.Core.NetFramework.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Stub.System.Data.SQLite.Core.NetFramework.1.0.119.0\build\net46\Stub.System.Data.SQLite.Core.NetFramework.targets'))" />
-    <Error Condition="!Exists('..\packages\ZstdNet.1.5.7\build\ZstdNet.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\ZstdNet.1.5.7\build\ZstdNet.targets'))" />
   </Target>
-  <Import Project="..\packages\ZstdNet.1.5.7\build\ZstdNet.targets" Condition="Exists('..\packages\ZstdNet.1.5.7\build\ZstdNet.targets')" />
 </Project>
\ No newline at end of file
diff --git a/Experimental/SakanaGL/ArcSX.cs b/Experimental/SakanaGL/ArcSX.cs
index 44ef1e65..a36fe961 100644
--- a/Experimental/SakanaGL/ArcSX.cs
+++ b/Experimental/SakanaGL/ArcSX.cs
@@ -123,10 +123,10 @@ namespace GameRes.Formats.Sakana
         internal static byte[] UnpackZstd (byte[] data)
         {
             int unpacked_size = BigEndian.ToInt32 (data, 0);
-            using (var dec = new ZstdNet.Decompressor())
+            using (var dec = new ZstdSharp.Decompressor())
             {
-                var packed = new ArraySegment<byte> (data, 4, data.Length - 4);
-                return dec.Unwrap (packed, unpacked_size);
+                var packed = new Span<byte> (data, 4, data.Length - 4);
+                return dec.Unwrap (packed, unpacked_size).ToArray();
             }
         }
 
diff --git a/Experimental/packages.config b/Experimental/packages.config
index 93a83b6c..112d6f11 100644
--- a/Experimental/packages.config
+++ b/Experimental/packages.config
@@ -9,5 +9,6 @@
   <package id="System.Memory" version="4.6.3" targetFramework="net472" />
   <package id="System.Numerics.Vectors" version="4.6.1" targetFramework="net472" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="6.1.2" targetFramework="net472" />
-  <package id="ZstdNet" version="1.5.7" targetFramework="net472" />
+  <package id="System.Threading.Tasks.Extensions" version="4.6.3" targetFramework="net472" />
+  <package id="ZstdSharp.Port" version="0.8.7" targetFramework="net472" />
 </packages>
\ No newline at end of file