diff --git a/UPnP/UPnP.csproj b/UPnP/UPnP.csproj
index cb75f5e..4e23d5b 100644
--- a/UPnP/UPnP.csproj
+++ b/UPnP/UPnP.csproj
@@ -11,6 +11,6 @@
     <PackageTags>upnp dlna ssdp</PackageTags>
     <RuntimeIdentifiers>win8-arm;linux-arm;win10-x64;osx.10.11-x64;linux-x64</RuntimeIdentifiers>
     <OutputType>Library</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFrameworks>net472;net6.0</TargetFrameworks>
   </PropertyGroup>
 </Project>