diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index 2e4abe7..8937e21 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -22,9 +22,9 @@ jobs:
         codesign --remove-signature $(which dart)
       if: startsWith(matrix.os, 'macos')
     - name: Install dependencies
-      run: pub get
+      run: dart pub get
     - name: Run tests
-      run: pub run test
+      run: dart run test
   coverage:
     runs-on: ubuntu-latest
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b0031a..27caa9a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,10 @@
-## 2.3.0 (unreleased)
+## 2.3.0
 
 - Mark objects only as clean when saving was successful.
 - Only mark objects as clean if they have not been modified since we started saving.
 - Make credentials changeable.
 - Add support for CustomData in entries.
+- Upgrade dependencies.
 
 ## 2.2.0
 
diff --git a/lib/src/credentials/keyfile.dart b/lib/src/credentials/keyfile.dart
index aa1a81f..ab9a234 100644
--- a/lib/src/credentials/keyfile.dart
+++ b/lib/src/credentials/keyfile.dart
@@ -123,11 +123,11 @@ class KeyFileCredentials implements CredentialsPart {
   @visibleForTesting
   static String hexFormatLikeKeepass(final String hexString) {
     final hex = hexString.toUpperCase();
-    const _groups = 8;
-    final remaining = hex.length % _groups;
+    const groups = 8;
+    final remaining = hex.length % groups;
     return [
-      for (var i = 0; i < hex.length ~/ _groups; i++)
-        hex.substring(i * _groups, i * _groups + _groups),
+      for (var i = 0; i < hex.length ~/ groups; i++)
+        hex.substring(i * groups, i * groups + groups),
       if (remaining != 0) hex.substring(hex.length - remaining)
     ].join(' ');
     // range(0, hexString.length / 8).map((i) => hexString.substring(i*_groups, i*_groups + _groups));
diff --git a/lib/src/crypto/key_encrypter_kdf.dart b/lib/src/crypto/key_encrypter_kdf.dart
index 60f993a..03a9dec 100644
--- a/lib/src/crypto/key_encrypter_kdf.dart
+++ b/lib/src/crypto/key_encrypter_kdf.dart
@@ -143,7 +143,7 @@ class KeyEncrypterKdf {
   }
 
   static Uint8List _encryptAesSync(EncryptAesArgs args) {
-    final cipher = ECBBlockCipher(AESFastEngine())
+    final cipher = ECBBlockCipher(AESEngine())
       ..init(true, KeyParameter(args.encryptionKey!));
     var out1 = Uint8List.fromList(args.key);
     var out2 = Uint8List(args.key.length);
diff --git a/lib/src/internal/crypto_utils.dart b/lib/src/internal/crypto_utils.dart
index cfc115c..a2888d2 100644
--- a/lib/src/internal/crypto_utils.dart
+++ b/lib/src/internal/crypto_utils.dart
@@ -32,7 +32,7 @@ class AesHelper {
       {String mode = CBC_MODE}) {
 //    Uint8List derivedKey = deriveKey(password);
     final KeyParameter keyParam = KeyParameter(derivedKey);
-    final BlockCipher aes = AESFastEngine();
+    final BlockCipher aes = AESEngine();
 
 //    Uint8List cipherIvBytes = base64.decode(ciphertext);
     final Uint8List iv = Uint8List(aes.blockSize)
diff --git a/lib/src/internal/pointycastle_argon2.dart b/lib/src/internal/pointycastle_argon2.dart
index 7e77c9d..e7d3ad5 100644
--- a/lib/src/internal/pointycastle_argon2.dart
+++ b/lib/src/internal/pointycastle_argon2.dart
@@ -2,7 +2,6 @@ import 'dart:typed_data';
 
 import 'package:argon2_ffi_base/argon2_ffi_base.dart';
 import 'package:pointycastle/export.dart' as pc;
-import 'package:pointycastle/pointycastle.dart' as pc;
 
 /// Dart-only implementation using pointycastle's Argon KDF.
 class PointyCastleArgon2 extends Argon2 {
diff --git a/lib/src/kdbx_format.dart b/lib/src/kdbx_format.dart
index 622388f..044cba2 100644
--- a/lib/src/kdbx_format.dart
+++ b/lib/src/kdbx_format.dart
@@ -8,7 +8,6 @@ import 'package:argon2_ffi_base/argon2_ffi_base.dart';
 import 'package:collection/collection.dart' show IterableExtension;
 import 'package:crypto/crypto.dart' as crypto;
 import 'package:kdbx/kdbx.dart';
-import 'package:kdbx/src/credentials/credentials.dart';
 import 'package:kdbx/src/crypto/key_encrypter_kdf.dart';
 import 'package:kdbx/src/crypto/protected_salt_generator.dart';
 import 'package:kdbx/src/internal/consts.dart';
@@ -792,7 +791,7 @@ class KdbxFormat {
   Uint8List _decryptContent(
       KdbxHeader header, Uint8List masterKey, Uint8List encryptedPayload) {
     final encryptionIv = header.fields[HeaderFields.EncryptionIV]!.bytes;
-    final decryptCipher = CBCBlockCipher(AESFastEngine());
+    final decryptCipher = CBCBlockCipher(AESEngine());
     decryptCipher.init(
         false, ParametersWithIV(KeyParameter(masterKey), encryptionIv));
     _logger.finer('decrypting ${encryptedPayload.length} with block size '
@@ -824,7 +823,7 @@ class KdbxFormat {
       KdbxHeader header, Uint8List cipherKey, Uint8List encryptedPayload) {
     final encryptionIv = header.fields[HeaderFields.EncryptionIV]!.bytes;
 
-    final decryptCipher = CBCBlockCipher(AESFastEngine());
+    final decryptCipher = CBCBlockCipher(AESEngine());
     decryptCipher.init(
         false, ParametersWithIV(KeyParameter(cipherKey), encryptionIv));
     final paddedDecrypted =
@@ -838,7 +837,7 @@ class KdbxFormat {
   Uint8List _encryptContentV4Aes(
       KdbxHeader header, Uint8List cipherKey, Uint8List bytes) {
     final encryptionIv = header.fields[HeaderFields.EncryptionIV]!.bytes;
-    final encryptCypher = CBCBlockCipher(AESFastEngine());
+    final encryptCypher = CBCBlockCipher(AESEngine());
     encryptCypher.init(
         true, ParametersWithIV(KeyParameter(cipherKey), encryptionIv));
     final paddedBytes = AesHelper.pad(bytes, encryptCypher.blockSize);
@@ -863,7 +862,7 @@ class KdbxFormat {
 
   static Uint8List _encryptDataAes(
       Uint8List masterKey, Uint8List payload, Uint8List encryptionIv) {
-    final encryptCipher = CBCBlockCipher(AESFastEngine());
+    final encryptCipher = CBCBlockCipher(AESEngine());
     encryptCipher.init(
         true, ParametersWithIV(KeyParameter(masterKey), encryptionIv));
     return AesHelper.processBlocks(
diff --git a/lib/src/utils/byte_utils.dart b/lib/src/utils/byte_utils.dart
index 27d4133..6937c04 100644
--- a/lib/src/utils/byte_utils.dart
+++ b/lib/src/utils/byte_utils.dart
@@ -190,16 +190,16 @@ class WriterHelperDartWeb extends WriterHelper {
   void writeUint64(int value, [LengthWriter? lengthWriter]) {
     lengthWriter?.call(8);
 
-    final _endian = Endian.little;
+    const endian = Endian.little;
     final highBits = value >> 32;
     final lowBits = value & mask32;
     final byteData = ByteData(8);
-    if (_endian == Endian.big) {
-      byteData.setUint32(0, highBits, _endian);
-      byteData.setUint32(0 + bytesPerWord, lowBits, _endian);
+    if (endian == Endian.big) {
+      byteData.setUint32(0, highBits, endian);
+      byteData.setUint32(0 + bytesPerWord, lowBits, endian);
     } else {
-      byteData.setUint32(0, lowBits, _endian);
-      byteData.setUint32(0 + bytesPerWord, highBits, _endian);
+      byteData.setUint32(0, lowBits, endian);
+      byteData.setUint32(0 + bytesPerWord, highBits, endian);
     }
     _write(byteData);
   }
diff --git a/pubspec.yaml b/pubspec.yaml
index 246b175..11f4125 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: kdbx
 description: KeepassX format implementation in pure dart. (kdbx 3.x and 4.x support).
-version: 2.2.0
+version: 2.3.0
 homepage: https://github.com/authpass/kdbx.dart
 
 environment:
@@ -10,7 +10,7 @@ dependencies:
   logging: '>=0.11.3+2 <2.0.0'
   crypto: '>=2.0.0 <4.0.0'
   pointycastle: '>=3.0.0 <4.0.0'
-  xml: '>=4.4.0 <6.0.0'
+  xml: '>=4.4.0 <7.0.0'
   uuid: ">=3.0.0 <5.0.0"
   meta: '>=1.0.0 <2.0.0'
   clock: '>=1.0.0 <2.0.0'
@@ -22,7 +22,7 @@ dependencies:
   supercharged_dart: '>=1.2.0 <4.0.0'
   synchronized: '>=2.2.0 <4.0.0'
 
-  collection: ^1.15.0
+  collection: '>=1.15.0 <2.0.0'
 
   # required for bin/
   args: '>1.5.0 <3.0.0'
@@ -30,6 +30,6 @@ dependencies:
   argon2_ffi_base: ^1.1.0+1
 
 dev_dependencies:
-  flutter_lints: ">=1.0.4 <2.0.0"
+  flutter_lints: '>=2.0.0 <3.0.0'
   test: '>=1.6.0 <2.0.0'
   fake_async: ^1.2.0
diff --git a/test/internal/byte_utils_test.dart b/test/internal/byte_utils_test.dart
index 82a1dca..2c3a9b4 100644
--- a/test/internal/byte_utils_test.dart
+++ b/test/internal/byte_utils_test.dart
@@ -9,7 +9,7 @@ void main() {
       final bytesBuilder = BytesBuilder();
       final writer = WriterHelper(bytesBuilder);
       writer.writeUint32(1);
-      print('result: ' + ByteUtils.toHexList(writer.output.toBytes()));
+      print('result: ${ByteUtils.toHexList(writer.output.toBytes())}');
       expect(writer.output.toBytes(), hasLength(4));
     });
     test('uint64', () {
diff --git a/test/internal/test_utils.dart b/test/internal/test_utils.dart
index 5e9846e..5db5a94 100644
--- a/test/internal/test_utils.dart
+++ b/test/internal/test_utils.dart
@@ -15,7 +15,7 @@ class TestUtil {
     setupLogging();
   }
 
-  static late final instance = TestUtil._();
+  static final instance = TestUtil._();
 
   static final keyTitle = KdbxKey('Title');
 
diff --git a/test/merge/kdbx_merge_test.dart b/test/merge/kdbx_merge_test.dart
index 7bd46c7..d30cdd0 100644
--- a/test/merge/kdbx_merge_test.dart
+++ b/test/merge/kdbx_merge_test.dart
@@ -50,10 +50,8 @@ void main() {
 
         fileMod.body.rootGroup.entries.first
             .setString(KdbxKeyCommon.USER_NAME, PlainValue('changed.'));
-        _logger.info('mod date: ' +
-            fileMod.body.rootGroup.entries.first.times.lastModificationTime
-                .get()
-                .toString());
+        _logger.info('mod date: ${fileMod.body.rootGroup.entries.first.times.lastModificationTime
+                .get()}');
         final file2 = await testUtil.saveAndRead(fileMod);
 
         _logger.info('\n\n\nstarting merge.\n');