Index: OpenRA.Test/OpenRA.Test.csproj
--- OpenRA.Test/OpenRA.Test.csproj.orig
+++ OpenRA.Test/OpenRA.Test.csproj
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <TargetFramework>net472</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <LangVersion>7.3</LangVersion>
+    <LangVersion>7.2</LangVersion>
     <DebugSymbols>true</DebugSymbols>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <OutputPath>../bin</OutputPath>
