diff --git a/Directory.Build.props b/Directory.Build.props
index db678da..c5875f0 100755
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -6,7 +6,7 @@
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
-    <LangVersion>latest</LangVersion>
+    <LangVersion>preview</LangVersion>
     <RestoreAdditionalProjectSources>
       https://www.myget.org/F/apollo3zehn-dev/api/v3/index.json
     </RestoreAdditionalProjectSources>