diff --git a/src/microwf.Core/microwf.Core.csproj b/src/microwf.Core/microwf.Core.csproj
index ad59bdf..01ac497 100644
--- a/src/microwf.Core/microwf.Core.csproj
+++ b/src/microwf.Core/microwf.Core.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard1.0</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <AssemblyName>tomware.Microwf.Core</AssemblyName>
     <RootNamespace>tomware.Microwf.Core</RootNamespace>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>