diff --git a/src/Usmap.NET/Usmap.NET.csproj b/src/Usmap.NET/Usmap.NET.csproj
index 3d3d9ad..0625dc1 100644
--- a/src/Usmap.NET/Usmap.NET.csproj
+++ b/src/Usmap.NET/Usmap.NET.csproj
@@ -40,6 +40,7 @@
     <PackageReference Include="GenericReader" Version="2.2.1" />
     <PackageReference Include="NetEscapades.EnumGenerators" Version="1.0.0-beta11" PrivateAssets="all" />
     <PackageReference Include="Oodle.NET" Version="2.1.0" />
+    <PackageReference Include="ZstdSharp.Port" Version="0.8.4" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Usmap.NET/Usmap.cs b/src/Usmap.NET/Usmap.cs
index 7f68536..752873c 100644
--- a/src/Usmap.NET/Usmap.cs
+++ b/src/Usmap.NET/Usmap.cs
@@ -4,6 +4,7 @@
 using System.Text;
 
 using GenericReader;
+using ZstdSharp;
 
 using Microsoft.Win32.SafeHandles;
 
@@ -169,7 +170,8 @@ public static Usmap Parse<TReader>(ref TReader usmapReader, UsmapOptions? option
 					}
 					case EUsmapCompressionMethod.ZStandard:
 					{
-						throw new FileLoadException($"Unsupported .usmap compression: {(int)EUsmapCompressionMethod.ZStandard} (Zstandard)");
+						var decompressor = new Decompressor();
+						uncompressedData = decompressor.Unwrap(compressedSpan, uncompressedSize).ToArray();
 					}
 					default:
 						throw new UnreachableException();