diff --git a/src/Microsoft.Azure.Functions.PowerShellWorker.csproj b/src/Microsoft.Azure.Functions.PowerShellWorker.csproj
index d71f0667..0dca542d 100644
--- a/src/Microsoft.Azure.Functions.PowerShellWorker.csproj
+++ b/src/Microsoft.Azure.Functions.PowerShellWorker.csproj
@@ -18,7 +18,7 @@ Licensed under the MIT license. See LICENSE file in the project root for full li
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.PowerShell.SDK" Version="6.2.0-preview.3" />
+    <PackageReference Include="Microsoft.PowerShell.SDK" Version="6.2.0-preview.4" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="CommandLineParser" Version="2.3.0" />
     <PackageReference Include="Grpc" Version="1.14.1" />
diff --git a/test/Microsoft.Azure.Functions.PowerShellWorker.Test.csproj b/test/Microsoft.Azure.Functions.PowerShellWorker.Test.csproj
index 8d6fc2e4..debfb8d9 100644
--- a/test/Microsoft.Azure.Functions.PowerShellWorker.Test.csproj
+++ b/test/Microsoft.Azure.Functions.PowerShellWorker.Test.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
-    <PackageReference Include="Microsoft.PowerShell.SDK" Version="6.2.0-preview.3" />
+    <PackageReference Include="Microsoft.PowerShell.SDK" Version="6.2.0-preview.4" />
   </ItemGroup>
 
   <ItemGroup>