diff --git a/test/powershell/Language/Scripting/Indexer.Tests.ps1 b/test/powershell/Language/Scripting/Indexer.Tests.ps1
index 378f2b3cee..5467c53de8 100644
--- a/test/powershell/Language/Scripting/Indexer.Tests.ps1
+++ b/test/powershell/Language/Scripting/Indexer.Tests.ps1
@@ -7,7 +7,7 @@ Describe 'Tests for indexers' -Tags "CI" {
         $hashtable["Hello"] | Should -BeExactly "There"
     }
 
-    It 'Accessing a Indexed property of a dictionary that does not exist should return $NULL' {
+    It 'Accessing a Indexed property of a dictionary that does not exist should return $null' {
         $hashtable = @{ "Hello"="There" }
         $hashtable["Hello There"] | Should -BeNullOrEmpty
         }
@@ -19,7 +19,7 @@ Describe 'Tests for indexers' -Tags "CI" {
         $service.CimClassProperties["DisplayName"].Name | Should -BeExactly 'DisplayName'
     }
 
-    It 'Accessing a Indexed property of a CimClass that does not exist should return $NULL' -Skip:(-not $IsWindows) {
+    It 'Accessing a Indexed property of a CimClass that does not exist should return $null' -Skip:(-not $IsWindows) {
 
         $service = Get-CimClass -ClassName Win32_Service
         $service.CimClassProperties["Hello There"] | Should -BeNullOrEmpty
diff --git a/test/powershell/Modules/Microsoft.PowerShell.Management/Set-Service.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Management/Set-Service.Tests.ps1
index 44eba212da..9065741910 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Management/Set-Service.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Management/Set-Service.Tests.ps1
@@ -82,7 +82,7 @@ Describe "Set/New/Remove-Service cmdlet tests" -Tags "Feature", "RequireAdminOnW
         param($parameter, $value, $script, $expectedNull)
 
         $setServiceCommand = [Microsoft.PowerShell.Commands.SetServiceCommand]::new()
-        if ($script -ne $Null) {
+        if ($script -ne $null) {
             $value = & $script
         }
         $setServiceCommand.$parameter = $value
diff --git a/test/powershell/Modules/Microsoft.PowerShell.Utility/Write-Stream.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Utility/Write-Stream.Tests.ps1
index 45973d431c..d08fa455da 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Utility/Write-Stream.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Utility/Write-Stream.Tests.ps1
@@ -115,7 +115,7 @@ Describe "Stream writer tests" -Tags "CI" {
             (Compare-Object $result $returnValue -SyncWindow 0).length | Should -Be 0
         }
 
-        It "Write-Information accepts `$Null" {
+        It "Write-Information accepts `$null" {
             $streamPath = Join-Path $testdrive information.txt
             $null | Write-Information -Tags myTag -ErrorAction Stop -InformationAction SilentlyContinue -InformationVariable i
             $i.Tags | Should -BeExactly "myTag"