diff --git a/build/common.props b/build/common.props
index 1fd040e1e4..fe36186fb9 100644
--- a/build/common.props
+++ b/build/common.props
@@ -36,7 +36,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(IsVisualBasic)' != 'true' AND '$(IsFsharp)' != 'true' ">
-    <LangVersion>11.0</LangVersion>
+    <LangVersion>12.0</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(VersionPrefix)' == '' ">