diff --git a/IL2C.Runtime/IL2C.Runtime.vcxproj b/IL2C.Runtime/IL2C.Runtime.vcxproj
index 96a7ff50..d0c0aba8 100644
--- a/IL2C.Runtime/IL2C.Runtime.vcxproj
+++ b/IL2C.Runtime/IL2C.Runtime.vcxproj
@@ -28,9 +28,9 @@
     <ProjectGuid>{182A62A4-47AC-4290-8EA5-250AE8131613}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>IL2CRuntime</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <LinkIncremental>false</LinkIncremental>
     <OutDir>$(ProjectDir)bin\$(Platform)\$(Configuration)\</OutDir>
     <IntDir>obj\$(Platform)\$(Configuration)\</IntDir>