diff --git a/eng/WpfArcadeSdk/Sdk/Sdk.props b/eng/WpfArcadeSdk/Sdk/Sdk.props
index 2c86e4c285c..442155d90dc 100644
--- a/eng/WpfArcadeSdk/Sdk/Sdk.props
+++ b/eng/WpfArcadeSdk/Sdk/Sdk.props
@@ -14,7 +14,7 @@
 
   <PropertyGroup>
     <GenXmlStringTable>$(WpfArcadeSdkToolsDir)GenXmlStringTable.pl</GenXmlStringTable>
-    <LangVersion Condition="'$(LangVersion)'==''">8.0</LangVersion>
+    <LangVersion Condition="'$(LangVersion)'==''">9.0</LangVersion>
     <CLSCompliant Condition="'$(CLSCompliant)'==''">true</CLSCompliant>
     <IncludeDllSafeSearchPathAttribute Condition="'$(IncludeDllSafeSearchPathAttribute )'==''">true</IncludeDllSafeSearchPathAttribute>