diff --git a/S22.Sasl.csproj b/S22.Sasl.csproj
index 3f44cba..5f2d99c 100644
--- a/S22.Sasl.csproj
+++ b/S22.Sasl.csproj
@@ -1,6 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <LangVersion>latest</LangVersion>
     <OutputType>Library</OutputType>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <AssemblyName>S22.Sasl.DotNetCore</AssemblyName>