diff --git a/Directory.Build.targets b/Directory.Build.targets
index 1d114280..38a3a911 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -1,5 +1,5 @@
 <Project>
     <PropertyGroup>
-        <Version>3.13</Version>
+        <Version>4.0</Version>
     </PropertyGroup>
 </Project>