diff --git a/script/tool/lib/src/publish_command.dart b/script/tool/lib/src/publish_command.dart
index e7b3d110c5fab..717fb3b53733c 100644
--- a/script/tool/lib/src/publish_command.dart
+++ b/script/tool/lib/src/publish_command.dart
@@ -99,6 +99,11 @@ class PublishCommand extends PackageLoopingCommand {
   // `flutter_plugin_tools-v0.0.24`.
   static const String _tagFormat = '%PACKAGE%-v%VERSION%';
 
+  /// Returns the correct path where the pub credential is stored.
+  @visibleForTesting
+  late final String credentialsPath =
+      _getCredentialsPath(platform: platform, path: path);
+
   @override
   final String name = 'publish';
 
@@ -397,13 +402,12 @@ Safe to ignore if the package is deleted in this commit.
   }
 
   void _ensureValidPubCredential() {
-    final String credentialsPath = _credentialsPath;
     final File credentialFile = packagesDir.fileSystem.file(credentialsPath);
     if (credentialFile.existsSync() &&
         credentialFile.readAsStringSync().isNotEmpty) {
       return;
     }
-    final String? credential = io.Platform.environment[_pubCredentialName];
+    final String? credential = platform.environment[_pubCredentialName];
     if (credential == null) {
       printError('''
 No pub credential available. Please check if `$credentialsPath` is valid.
@@ -415,42 +419,46 @@ If running this command on CI, you can set the pub credential content in the $_p
       ..writeStringSync(credential)
       ..closeSync();
   }
-
-  /// Returns the correct path where the pub credential is stored.
-  @visibleForTesting
-  static String getCredentialPath() {
-    return _credentialsPath;
-  }
 }
 
 /// The path in which pub expects to find its credentials file.
-final String _credentialsPath = () {
-  // This follows the same logic as pub:
-  // https://github.com/dart-lang/pub/blob/d99b0d58f4059d7bb4ac4616fd3d54ec00a2b5d4/lib/src/system_cache.dart#L34-L43
-  String? cacheDir;
-  final String? pubCache = io.Platform.environment['PUB_CACHE'];
-  if (pubCache != null) {
-    cacheDir = pubCache;
-  } else if (io.Platform.isWindows) {
-    final String? appData = io.Platform.environment['APPDATA'];
+String _getCredentialsPath(
+    {required Platform platform, required p.Context path}) {
+  // See https://github.com/dart-lang/pub/blob/master/doc/cache_layout.md#layout
+  String? configDir;
+  if (platform.isLinux) {
+    String? configHome = platform.environment['XDG_CONFIG_HOME'];
+    if (configHome == null) {
+      final String? home = platform.environment['HOME'];
+      if (home == null) {
+        printError('"HOME" environment variable is not set.');
+      } else {
+        configHome = path.join(home, '.config');
+      }
+    }
+    if (configHome != null) {
+      configDir = path.join(configHome, 'dart');
+    }
+  } else if (platform.isWindows) {
+    final String? appData = platform.environment['APPDATA'];
     if (appData == null) {
       printError('"APPDATA" environment variable is not set.');
     } else {
-      cacheDir = p.join(appData, 'Pub', 'Cache');
+      configDir = path.join(appData, 'dart');
     }
-  } else {
-    final String? home = io.Platform.environment['HOME'];
+  } else if (platform.isMacOS) {
+    final String? home = platform.environment['HOME'];
     if (home == null) {
       printError('"HOME" environment variable is not set.');
     } else {
-      cacheDir = p.join(home, '.pub-cache');
+      configDir = path.join(home, 'Library', 'Application Support', 'dart');
     }
   }
 
-  if (cacheDir == null) {
-    printError('Unable to determine pub cache location');
+  if (configDir == null) {
+    printError('Unable to determine pub con location');
     throw ToolExit(1);
   }
 
-  return p.join(cacheDir, 'credentials.json');
-}();
+  return path.join(configDir, 'pub-credentials.json');
+}
diff --git a/script/tool/test/publish_command_test.dart b/script/tool/test/publish_command_test.dart
index 94023032ecb66..bbee7f94a5301 100644
--- a/script/tool/test/publish_command_test.dart
+++ b/script/tool/test/publish_command_test.dart
@@ -24,9 +24,11 @@ import 'util.dart';
 void main() {
   final String flutterCommand = getFlutterCommand(const LocalPlatform());
 
+  late MockPlatform platform;
   late Directory packagesDir;
   late MockGitDir gitDir;
   late TestProcessRunner processRunner;
+  late PublishCommand command;
   late CommandRunner<void> commandRunner;
   late MockStdin mockStdin;
   late FileSystem fileSystem;
@@ -34,13 +36,14 @@ void main() {
   late Map<String, Map<String, dynamic>> mockHttpResponses;
 
   void createMockCredentialFile() {
-    final String credentialPath = PublishCommand.getCredentialPath();
-    fileSystem.file(credentialPath)
+    fileSystem.file(command.credentialsPath)
       ..createSync(recursive: true)
       ..writeAsStringSync('some credential');
   }
 
   setUp(() async {
+    platform = MockPlatform(isLinux: true);
+    platform.environment['HOME'] = '/home';
     fileSystem = MemoryFileSystem();
     packagesDir = createPackagesDirectory(fileSystem: fileSystem);
     processRunner = TestProcessRunner();
@@ -71,14 +74,15 @@ void main() {
     });
 
     mockStdin = MockStdin();
-    commandRunner = CommandRunner<void>('tester', '')
-      ..addCommand(PublishCommand(
-        packagesDir,
-        processRunner: processRunner,
-        stdinput: mockStdin,
-        gitDir: gitDir,
-        httpClient: mockClient,
-      ));
+    command = PublishCommand(
+      packagesDir,
+      platform: platform,
+      processRunner: processRunner,
+      stdinput: mockStdin,
+      gitDir: gitDir,
+      httpClient: mockClient,
+    );
+    commandRunner = CommandRunner<void>('tester', '')..addCommand(command);
   });
 
   group('Initial validation', () {
@@ -880,6 +884,44 @@ void main() {
           isNot(contains('git-push')));
     });
   });
+
+  group('credential location', () {
+    test('Linux with XDG', () async {
+      platform = MockPlatform(isLinux: true);
+      platform.environment['XDG_CONFIG_HOME'] = '/xdghome/config';
+      command = PublishCommand(packagesDir, platform: platform);
+
+      expect(
+          command.credentialsPath, '/xdghome/config/dart/pub-credentials.json');
+    });
+
+    test('Linux without XDG', () async {
+      platform = MockPlatform(isLinux: true);
+      platform.environment['HOME'] = '/home';
+      command = PublishCommand(packagesDir, platform: platform);
+
+      expect(
+          command.credentialsPath, '/home/.config/dart/pub-credentials.json');
+    });
+
+    test('macOS', () async {
+      platform = MockPlatform(isMacOS: true);
+      platform.environment['HOME'] = '/Users/someuser';
+      command = PublishCommand(packagesDir, platform: platform);
+
+      expect(command.credentialsPath,
+          '/Users/someuser/Library/Application Support/dart/pub-credentials.json');
+    });
+
+    test('Windows', () async {
+      platform = MockPlatform(isWindows: true);
+      platform.environment['APPDATA'] = r'C:\Users\SomeUser\AppData';
+      command = PublishCommand(packagesDir, platform: platform);
+
+      expect(command.credentialsPath,
+          r'C:\Users\SomeUser\AppData\dart\pub-credentials.json');
+    });
+  });
 }
 
 /// An extension of [RecordingProcessRunner] that stores 'flutter pub publish'