diff --git a/PKHeX.csproj b/PKHeX.csproj
index bc43ada49..be07fde20 100644
--- a/PKHeX.csproj
+++ b/PKHeX.csproj
@@ -40,6 +40,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <UseVSHostingProcess>false</UseVSHostingProcess>
+    <LangVersion>6</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
     <PlatformTarget>x86</PlatformTarget>