diff --git a/README.md b/README.md
index 00f6855..bc0762d 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,8 @@ wkx-sharp - https://github.com/cschwarz/wkx-sharp for handling geometries
 
 ## History
 
+2023-08-30: release 1.2.1: add support for Geometry type as input (in addition of WKB)
+
 2023-08-30: release 1.2: add support for MultiPolygon
 
 2020-09-01: release 1.1: to NET 6
diff --git a/src/triangulator/Triangulator.cs b/src/triangulator/Triangulator.cs
index 45ba5cc..ddefb1f 100644
--- a/src/triangulator/Triangulator.cs
+++ b/src/triangulator/Triangulator.cs
@@ -8,24 +8,26 @@ namespace Triangulate
 {
     public static class Triangulator
     {
-        public static byte[] Triangulate(byte[] wkb)
+        public static Geometry Triangulate(Geometry geom)
         {
-            var geom = Geometry.Deserialize<WkbSerializer>(wkb);
-
             if (geom is PolyhedralSurface polyhedral)
             {
-                var triangulatedPolygon = Triangulate(polyhedral);
-                return triangulatedPolygon.AsBinary();
+                return Triangulate(polyhedral);
             }
             else if (geom is MultiPolygon multiPolygon)
             {
-                var triangulatedPolygon = Triangulate(multiPolygon);
-                return triangulatedPolygon.AsBinary();
+                return Triangulate(multiPolygon);
             }
             else
             {
                 throw new NotSupportedException($"Geometry type {geom.GeometryType} is not supported");
             }
+        }       
+        public static byte[] Triangulate(byte[] wkb)
+        {
+            var geom = Geometry.Deserialize<WkbSerializer>(wkb);
+            var result = Triangulate(geom);
+            return result.AsBinary();
         }
 
         private static MultiPolygon Triangulate(MultiPolygon multipolygon)
diff --git a/src/triangulator/triangulator.csproj b/src/triangulator/triangulator.csproj
index 9c6b85f..4344270 100644
--- a/src/triangulator/triangulator.csproj
+++ b/src/triangulator/triangulator.csproj
@@ -13,11 +13,11 @@
     <PackageTags>wkb triangulate earcut</PackageTags>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <Copyright>Bert Temme</Copyright>
-    <Version>1.2</Version>
+    <Version>1.2.1</Version>
     <PackageReleaseNotes>Add support for MultiPolygon</PackageReleaseNotes>
     <RootNamespace>Triangulate</RootNamespace>
-    <AssemblyVersion>1.2</AssemblyVersion>
-    <FileVersion>1.2</FileVersion>
+    <AssemblyVersion>1.2.1</AssemblyVersion>
+    <FileVersion>1.2.1</FileVersion>
   </PropertyGroup>
 
   <ItemGroup>