diff --git a/defaultRules.md b/defaultRules.md
index a3dc1891..77bb6764 100644
--- a/defaultRules.md
+++ b/defaultRules.md
@@ -89,6 +89,7 @@ _Note: when a specific key order is used, any other keys will be sorted in the e
 | extensionPack         | Sort unique items                                                              |
 | extensionDependencies | Sort unique items                                                              |
 | flat                  |                                                                                |
+| packageManager        |                                                                                |
 | engines               | Key sort                                                                       |
 | engineStrict          | Key sort                                                                       |
 | languageName          |                                                                                |
diff --git a/index.js b/index.js
index bb43ad2a..9c5240de 100755
--- a/index.js
+++ b/index.js
@@ -287,6 +287,7 @@ const fields = [
   /* vscode */ { key: 'extensionPack', over: uniqAndSortArray },
   /* vscode */ { key: 'extensionDependencies', over: uniqAndSortArray },
   { key: 'flat' },
+  { key: 'packageManager' },
   { key: 'engines', over: sortObject },
   { key: 'engineStrict', over: sortObject },
   { key: 'languageName' },
diff --git a/tests/fields.js b/tests/fields.js
index 51a520c7..9441d42e 100644
--- a/tests/fields.js
+++ b/tests/fields.js
@@ -36,6 +36,7 @@ for (const field of [
   'browserslist',
   'stylelint',
   'flat',
+  'packageManager',
   'os',
   'cpu',
   'icon',
diff --git a/tests/snapshots/cli.js.snap b/tests/snapshots/cli.js.snap
index 948afb38..d354a539 100644
Binary files a/tests/snapshots/cli.js.snap and b/tests/snapshots/cli.js.snap differ
diff --git a/tests/snapshots/main.js.md b/tests/snapshots/main.js.md
index c15a3f70..0d41813e 100644
--- a/tests/snapshots/main.js.md
+++ b/tests/snapshots/main.js.md
@@ -77,6 +77,7 @@ Generated by [AVA](https://avajs.dev).
         "nyc": "nyc",␊
         "optionalDependencies": "optionalDependencies",␊
         "os": "os",␊
+        "packageManager": "packageManager",␊
         "peerDependencies": "peerDependencies",␊
         "peerDependenciesMeta": "peerDependenciesMeta",␊
         "pre-commit": "pre-commit",␊
@@ -197,6 +198,7 @@ Generated by [AVA](https://avajs.dev).
         "extensionPack": "extensionPack",␊
         "extensionDependencies": "extensionDependencies",␊
         "flat": "flat",␊
+        "packageManager": "packageManager",␊
         "engines": "engines",␊
         "engineStrict": "engineStrict",␊
         "languageName": "languageName",␊
diff --git a/tests/snapshots/main.js.snap b/tests/snapshots/main.js.snap
index 35e47862..28369c75 100644
Binary files a/tests/snapshots/main.js.snap and b/tests/snapshots/main.js.snap differ