diff --git a/src/NetEvolve.Arguments/NetEvolve.Arguments.csproj b/src/NetEvolve.Arguments/NetEvolve.Arguments.csproj
index 6906b3c..7dd4ede 100644
--- a/src/NetEvolve.Arguments/NetEvolve.Arguments.csproj
+++ b/src/NetEvolve.Arguments/NetEvolve.Arguments.csproj
@@ -12,7 +12,7 @@
     <RepositoryUrl>https://github.com/dailydevops/arguments.git</RepositoryUrl>
     <PackageTags>guard;clausel;exceptions</PackageTags>
 
-    <CopyrightStartYear>2023</CopyrightStartYear>
+    <CopyrightYearStart>2023</CopyrightYearStart>
 
     <!-- Remove, when Polyfill has fixed this. -->
     <DisableBannedApiForPerformance>true</DisableBannedApiForPerformance>