diff --git a/build/PackageTask.cs b/build/PackageTask.cs
index 9f8d8ad7..a01752aa 100644
--- a/build/PackageTask.cs
+++ b/build/PackageTask.cs
@@ -1,3 +1,4 @@
+using Cake.Common.Build;
 using Cake.Common.IO;
 using Cake.Common.Tools.DotNet;
 using Cake.Common.Tools.DotNet.MSBuild;
@@ -10,7 +11,7 @@ namespace BuildScripts;
 [TaskName(nameof(PackageTask))]
 public sealed class PackageTask : FrostingTask<BuildContext>
 {
-    public override async void Run(BuildContext context)
+    public override void Run(BuildContext context)
     {
         context.CleanDirectories(context.ArtifactsDirectory);
         context.CreateDirectory(context.ArtifactsDirectory);
@@ -18,6 +19,9 @@ public sealed class PackageTask : FrostingTask<BuildContext>
         DotNetMSBuildSettings msBuildSettings = new DotNetMSBuildSettings();
         msBuildSettings.WithProperty("Version", context.Version);
 
+        //  Ignore warnings about adding duplicate items added to package
+        msBuildSettings.WithProperty("NoWarn", "NU5118")
+
         DotNetPackSettings packSettings = new DotNetPackSettings()
         {
             MSBuildSettings = msBuildSettings,