diff --git a/src/Microsoft.DotNet.Build.Tasks.Workloads/src/GenerateMsiBase.cs b/src/Microsoft.DotNet.Build.Tasks.Workloads/src/GenerateMsiBase.cs
index c139e72dc51..11b7560fa4b 100644
--- a/src/Microsoft.DotNet.Build.Tasks.Workloads/src/GenerateMsiBase.cs
+++ b/src/Microsoft.DotNet.Build.Tasks.Workloads/src/GenerateMsiBase.cs
@@ -110,6 +110,11 @@ public string SuppressIces
             set;
         }
 
+        /// <summary>
+        /// Used to synchronize access to the NuGet being extracted.
+        /// </summary>
+        private readonly object extractNuGetLock = new object();
+
         /// <summary>
         /// Generate a set of MSIs for the specified platforms using the specified NuGet package.
         /// </summary>
@@ -118,7 +123,11 @@ public string SuppressIces
         /// <param name="platforms"></param>
         protected IEnumerable<ITaskItem> Generate(string sourcePackage, string swixPackageId, string outputPath, WorkloadPackKind kind, params string[] platforms)
         {
-            NugetPackage nupkg = new(sourcePackage, Log);
+            NugetPackage nupkg = null;
+            lock (extractNuGetLock)
+            {
+                nupkg = new(sourcePackage, Log);
+            }
             List<TaskItem> msis = new();
 
             // MSI ProductName defaults to the package title and fallback to the package ID with a warning.
@@ -139,7 +148,10 @@ protected IEnumerable<ITaskItem> Generate(string sourcePackage, string swixPacka
             if ((kind != WorkloadPackKind.Library) && (kind != WorkloadPackKind.Template))
             {
                 Log.LogMessage(MessageImportance.Low, $"Extracting '{sourcePackage}' to '{packageContentsDirectory}'");
-                nupkg.Extract(packageContentsDirectory, exclusions);
+                lock (extractNuGetLock)
+                {
+                    nupkg.Extract(packageContentsDirectory, exclusions);
+                }
             }
             else
             {
@@ -188,9 +200,12 @@ protected IEnumerable<ITaskItem> Generate(string sourcePackage, string swixPacka
                     SourceDirectory = packageContentsDirectory
                 };
 
-                if (!heat.Execute())
+                lock (extractNuGetLock)
                 {
-                    throw new Exception($"Failed to harvest package contents.");
+                    if (!heat.Execute())
+                    {
+                        throw new Exception($"Failed to harvest package contents.");
+                    }
                 }
 
                 // Compile the MSI sources