diff --git a/build/vc2017/nana.vcxproj b/build/vc2017/nana.vcxproj
index cc3c70dc..0c4323de 100644
--- a/build/vc2017/nana.vcxproj
+++ b/build/vc2017/nana.vcxproj
@@ -23,7 +23,7 @@
     <ProjectGuid>{42D0520F-EFA5-4831-84FE-2B9085301C5D}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>nana</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">