diff --git a/test/powershell/Modules/Microsoft.PowerShell.Utility/Send-MailMessage.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Utility/Send-MailMessage.Tests.ps1
index 723e2dc05e9..cb05eabb8ba 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Utility/Send-MailMessage.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Utility/Send-MailMessage.Tests.ps1
@@ -6,7 +6,7 @@ if(-not ("netDumbster.smtp.SimpleSmtpServer" -as [type]))
     Register-PackageSource -Name nuget.org -Location https://api.nuget.org/v3/index.json -ProviderName NuGet -ErrorAction SilentlyContinue
 
     $nugetPackage = "netDumbster"
-    Install-Package -Name $nugetPackage -ProviderName NuGet -Scope CurrentUser -Force -Source 'nuget.org'
+    Install-Package -Name $nugetPackage -ProviderName NuGet -Scope CurrentUser -Force -Source 'nuget.org' -RequiredVersion 2.0.0.4
 
     $dll = "$(Split-Path (Get-Package $nugetPackage).Source)\lib\netstandard2.0\netDumbster.dll"
     Add-Type -Path $dll