diff --git a/utils/build-windows-toolchain.bat b/utils/build-windows-toolchain.bat
index 1c94847261a21..7b8d258ceed92 100644
--- a/utils/build-windows-toolchain.bat
+++ b/utils/build-windows-toolchain.bat
@@ -61,7 +61,7 @@ set TMPDIR=%BuildRoot%\tmp
 set NINJA_STATUS=[%%f/%%t][%%p][%%es] 
 
 :: Build the -Test argument, if any, by subtracting skipped tests
-set TestArg=-Test lld,lldb,swift,dispatch,foundation,xctest,swift-format,sourcekit-lsp,
+set TestArg=-Test lld,lldb,swift,dispatch,foundation,xctest,swift-format,sourcekit-lsp,swiftpm,
 for %%I in (%SKIP_TESTS%) do (call set TestArg=%%TestArg:%%I,=%%)
 if "%TestArg:~-1%"=="," (set TestArg=%TestArg:~0,-1%) else (set TestArg= )
 
diff --git a/utils/build.ps1 b/utils/build.ps1
index 4529bc00ee18c..0f08f602d3f26 100644
--- a/utils/build.ps1
+++ b/utils/build.ps1
@@ -3302,7 +3302,7 @@ function Test-PackageManager() {
   }
 
   Build-SPMProject `
-    -Action Test `
+    -Action TestParallel `
     -Src $SrcDir `
     -Bin "$BinaryCache\$($HostPlatform.Triple)\PackageManagerTests" `
     -Platform $HostPlatform `