diff --git a/lib/encryption.dart b/lib/encryption.dart
index f534f836..1f3e1e61 100644
--- a/lib/encryption.dart
+++ b/lib/encryption.dart
@@ -17,7 +17,7 @@
  */
 
 /// Matrix SDK encryption specific extension
-library encryption;
+library;
 
 export 'encryption/encryption.dart';
 export 'encryption/key_manager.dart';
diff --git a/lib/matrix.dart b/lib/matrix.dart
index 6b271890..f7e30e06 100644
--- a/lib/matrix.dart
+++ b/lib/matrix.dart
@@ -17,7 +17,7 @@
  */
 
 /// Matrix SDK written in pure Dart.
-library matrix;
+library;
 
 export 'matrix_api_lite.dart';
 
diff --git a/lib/matrix_api_lite.dart b/lib/matrix_api_lite.dart
index 0a028ca3..2fa9eab5 100644
--- a/lib/matrix_api_lite.dart
+++ b/lib/matrix_api_lite.dart
@@ -21,7 +21,8 @@
 * SOFTWARE.
 */
 
-library matrix_api_lite;
+/// Lightweight wrapper around the raw matrix API.
+library;
 
 export 'matrix_api_lite/generated/model.dart';
 export 'matrix_api_lite/matrix_api.dart';
diff --git a/lib/msc_extensions/extension_recent_emoji/recent_emoji.dart b/lib/msc_extensions/extension_recent_emoji/recent_emoji.dart
index e0811dfc..4f8343e5 100644
--- a/lib/msc_extensions/extension_recent_emoji/recent_emoji.dart
+++ b/lib/msc_extensions/extension_recent_emoji/recent_emoji.dart
@@ -1,4 +1,5 @@
-library extension_recent_emoji;
+/// Extension to synchronize the recently used widgets with Element clients
+library;
 
 import 'package:matrix/matrix.dart';
 
diff --git a/lib/msc_extensions/msc_1236_widgets/msc_1236_widgets.dart b/lib/msc_extensions/msc_1236_widgets/msc_1236_widgets.dart
index b694e1aa..be0510da 100644
--- a/lib/msc_extensions/msc_1236_widgets/msc_1236_widgets.dart
+++ b/lib/msc_extensions/msc_1236_widgets/msc_1236_widgets.dart
@@ -1,4 +1,5 @@
-library msc_1236_widgets;
+/// Extensions related to widgets in a room. Widgets are not part of the Matrix specification yet.
+library;
 
 import 'package:matrix/matrix.dart';
 
diff --git a/lib/msc_extensions/msc_2835_uia_login/msc_2835_uia_login.dart b/lib/msc_extensions/msc_2835_uia_login/msc_2835_uia_login.dart
index 00a00f90..2fefc458 100644
--- a/lib/msc_extensions/msc_2835_uia_login/msc_2835_uia_login.dart
+++ b/lib/msc_extensions/msc_2835_uia_login/msc_2835_uia_login.dart
@@ -1,4 +1,5 @@
-library msc_2835_uia_login;
+/// Experimental login method using User Interactive Authentication
+library;
 
 import 'dart:convert';
 
diff --git a/lib/msc_extensions/msc_3814_dehydrated_devices/msc_3814_dehydrated_devices.dart b/lib/msc_extensions/msc_3814_dehydrated_devices/msc_3814_dehydrated_devices.dart
index 67e5d81f..33a46718 100644
--- a/lib/msc_extensions/msc_3814_dehydrated_devices/msc_3814_dehydrated_devices.dart
+++ b/lib/msc_extensions/msc_3814_dehydrated_devices/msc_3814_dehydrated_devices.dart
@@ -1,4 +1,6 @@
-library msc_3814_dehydrated_devices;
+/// Extensions for the experimental dehydrated devices MSC, which allows
+/// receiving encrypted messages while you have no devices signed in.
+library;
 
 import 'dart:convert';
 import 'dart:math';
diff --git a/lib/src/utils/crypto/subtle.dart b/lib/src/utils/crypto/subtle.dart
index 34997373..0b679790 100644
--- a/lib/src/utils/crypto/subtle.dart
+++ b/lib/src/utils/crypto/subtle.dart
@@ -1,9 +1,6 @@
 // Copyright (c) 2020 Famedly GmbH
 // SPDX-License-Identifier: AGPL-3.0-or-later
 
-@JS()
-library subtle;
-
 import 'dart:async';
 import 'dart:js_util';
 import 'dart:typed_data';
diff --git a/pubspec.yaml b/pubspec.yaml
index 2aa10995..184b19b2 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -24,7 +24,7 @@ dependencies:
   image: ^4.0.15
   js: ^0.6.3
   markdown: ^7.1.1
-  mime: ^1.0.0
+  mime: ">=1.0.0 <3.0.0"
   olm: ^2.0.2
   random_string: ^2.3.1
   sdp_transform: ^0.3.2
@@ -40,7 +40,7 @@ dev_dependencies:
   enhanced_enum_generator: ^0.2.4
   file: ">=6.1.1 <8.0.0"
   import_sorter: ^4.6.0
-  lints: ^4.0.0
+  lints: ^5.0.0
   path: ^1.9.0
-  sqflite_common_ffi: 2.3.2+1 # v2.3.3 doesn't support dart v3.2.x
+  sqflite_common_ffi: ^2.3.2+1 # sqflite_common_ffi aggressively requires newer dart versions
   test: ^1.15.7