diff --git a/.github/workflows/promote-shipped-apis.yml b/.github/workflows/promote-shipped-apis.yml
index fb4d44ffe41..5fd5290a236 100644
--- a/.github/workflows/promote-shipped-apis.yml
+++ b/.github/workflows/promote-shipped-apis.yml
@@ -79,9 +79,11 @@ jobs:
           git checkout $prBranch
           git merge origin/$branch -m "Merge $branch into promote-shipped-apis branch"
 
-      - name: Run public API promotion script
-        shell: pwsh
-        run: ./dotnet/eng/scripts/promote-shipped-apis.ps1
+      - name: Promote public API exports
+        id: promote
+        uses: BinkyLabs/public-api-promote@724e672702a3e55a06e4b1355183397d44f9f390 # v1.0.3
+        with:
+          unshipped-glob: 'dotnet/src/**/*.Unshipped.txt'
 
       - name: Check for changes
         id: check_changes
diff --git a/dotnet/eng/scripts/promote-shipped-apis.ps1 b/dotnet/eng/scripts/promote-shipped-apis.ps1
deleted file mode 100644
index f7140452f2f..00000000000
--- a/dotnet/eng/scripts/promote-shipped-apis.ps1
+++ /dev/null
@@ -1,54 +0,0 @@
-param(
-    [string] $Path = (Join-Path $PSScriptRoot '..\..\src')
-)
-
-$ErrorActionPreference = 'Stop'
-
-$root = Resolve-Path $Path
-$encoding = [System.Text.UTF8Encoding]::new($true)
-$nullableHeader = '#nullable enable'
-$promotedFiles = 0
-$promotedApis = 0
-
-Get-ChildItem -Path $root -Recurse -Filter 'PublicAPI.Unshipped.txt' | ForEach-Object {
-    $unshippedFile = $_.FullName
-    $shippedFile = Join-Path $_.DirectoryName 'PublicAPI.Shipped.txt'
-
-    $unshippedLines = if ((Get-Item $unshippedFile).Length -gt 0) {
-        Get-Content -Path $unshippedFile -Encoding UTF8 | Where-Object {
-            -not [string]::IsNullOrWhiteSpace($_) -and $_ -ne $nullableHeader
-        }
-    }
-    else {
-        @()
-    }
-
-    if ($unshippedLines.Count -eq 0) {
-        return
-    }
-
-    $allLines = [System.Collections.Generic.SortedSet[string]]::new([System.StringComparer]::Ordinal)
-    if (Test-Path $shippedFile) {
-        Get-Content -Path $shippedFile -Encoding UTF8 | Where-Object {
-            -not [string]::IsNullOrWhiteSpace($_) -and $_ -ne $nullableHeader
-        } | ForEach-Object {
-            $null = $allLines.Add($_)
-        }
-    }
-
-    $unshippedLines | ForEach-Object {
-        $null = $allLines.Add($_)
-    }
-
-    $shippedLines = @($nullableHeader) + @($allLines)
-    $shippedContent = [string]::Join("`n", $shippedLines) + "`n"
-
-    [System.IO.File]::WriteAllText($shippedFile, $shippedContent, $encoding)
-    [System.IO.File]::WriteAllText($unshippedFile, "$nullableHeader`n", $encoding)
-
-    $promotedFiles++
-    $promotedApis += $unshippedLines.Count
-    Write-Host "Promoted $($unshippedLines.Count) public API entries in $($_.Directory.Name)."
-}
-
-Write-Host "Promoted $promotedApis public API baseline entries across $promotedFiles baseline file(s)."