diff --git a/README.md b/README.md
index f863e68..bcaeffc 100644
--- a/README.md
+++ b/README.md
@@ -96,7 +96,10 @@ Tool parameters:
 --use_i3dm (optional - default false) Use I3dm format  - only first model will be processed (false creates Cmpt)
 
 --boundingvolume_heights (option - default: 0,10) - Tile boundingVolume heights (min, max) in meters. The heights will be added to the z_min and z_max values of the input geometries.
+
+--tileset_version (optional - default "") - Tileset version
 ```
+
 # Docker
 
 See https://hub.docker.com/r/geodan/i3dm.export
diff --git a/src/Options.cs b/src/Options.cs
index 8b8bc7e..c6d1212 100644
--- a/src/Options.cs
+++ b/src/Options.cs
@@ -39,6 +39,10 @@ public class Options
 
     [Option("boundingvolume_heights", Required = false, Default = "0,10", HelpText = "Tile boundingVolume heights (min, max) in meters")]
     public string BoundingVolumeHeights { get; set; }
+
+    [Option("tileset_version", Required = false, Default = "", HelpText = "Tileset version")]
+    public string TilesetVersion { get; set; }
+
 }
 
 
diff --git a/src/Program.cs b/src/Program.cs
index df059d5..f246147 100644
--- a/src/Program.cs
+++ b/src/Program.cs
@@ -31,12 +31,17 @@ static void Main(string[] args)
             SqlMapper.AddTypeHandler(new JArrayTypeHandler());
 
             var version = Assembly.GetExecutingAssembly().GetName().Version;
+            var tilesetVersion = o.TilesetVersion;
 
             var stopWatch = new Stopwatch();
             stopWatch.Start();
 
             Console.WriteLine("Tool: I3dm.export");
             Console.WriteLine("Version: " + version);
+            if (!tilesetVersion.Equals(string.Empty))
+            {
+                Console.WriteLine($"Tileset version: {tilesetVersion}");
+            }
             Console.WriteLine($"Exporting instances from {o.Table}...");
             Console.WriteLine($"Use GPU instancing: {o.UseGpuInstancing}");
 
@@ -133,7 +138,7 @@ static void Main(string[] args)
             var subtreeLevels = subtreeFiles.Count > 1 ? ((Tile)subtreeFiles.ElementAt(1).Key).Z : 2;
             var availableLevels = tiles.Max(t => t.Z) + 1;
 
-            var tilesetjson = TreeSerializer.ToImplicitTileset(rootBoundingVolumeRegion, o.GeometricError, availableLevels, subtreeLevels, version, (bool)o.UseGpuInstancing, (bool)o.UseI3dm);
+            var tilesetjson = TreeSerializer.ToImplicitTileset(rootBoundingVolumeRegion, o.GeometricError, availableLevels, subtreeLevels, version, (bool)o.UseGpuInstancing, (bool)o.UseI3dm, tilesetVersion);
             var file = $"{o.Output}{Path.AltDirectorySeparatorChar}tileset.json";
             Console.WriteLine($"Subtree files written: {subtreeFiles.Count}");
             Console.WriteLine("SubtreeLevels: " + subtreeLevels);
diff --git a/src/Tileset/TilesetClasses.cs b/src/Tileset/TilesetClasses.cs
index 5774fad..74d6b9a 100644
--- a/src/Tileset/TilesetClasses.cs
+++ b/src/Tileset/TilesetClasses.cs
@@ -5,9 +5,9 @@ namespace i3dm.export.Tileset;
 
 public class TileSet
 {
+    public Asset asset { get; set; }
     public double geometricError { get; set; }
     public Root root { get; set; }
-    public Asset asset { get; set; }
 }
 
 public class Child : ICloneable
@@ -76,4 +76,6 @@ public class Asset
     public string generator { get; set; }
 
     public string version { get; set; }
+
+    public string tilesetVersion { get; set; }
 }
\ No newline at end of file
diff --git a/src/TreeSerializer.cs b/src/TreeSerializer.cs
index b2c6e0b..102b294 100644
--- a/src/TreeSerializer.cs
+++ b/src/TreeSerializer.cs
@@ -6,13 +6,17 @@ namespace i3dm.export;
 
 public static class TreeSerializer
 {
-    public static string ToImplicitTileset(double[] box, double geometricError, int availableLevels, int subtreeLevels, Version version, bool useGpuInstancing = false, bool useI3dm = false)
+    public static string ToImplicitTileset(double[] box, double geometricError, int availableLevels, int subtreeLevels, Version version, bool useGpuInstancing = false, bool useI3dm = false, string tilesetVersion = "")
     {
         var tileset = new TileSet
         {
             asset = new Asset() { version = "1.1", generator = $"i3dm.export {version}" },
             geometricError = geometricError
         };
+        if (!tilesetVersion.Equals(string.Empty))
+        {
+            tileset.asset.tilesetVersion = tilesetVersion;
+        }
         var root = GetRoot(geometricError, box, "ADD");
         var extension = useGpuInstancing ? "glb" : "cmpt";
         if(useI3dm)