diff --git a/coinlib/lib/src/crypto/hash.dart b/coinlib/lib/src/crypto/hash.dart
index 8b9d0f9..7c1e663 100644
--- a/coinlib/lib/src/crypto/hash.dart
+++ b/coinlib/lib/src/crypto/hash.dart
@@ -17,7 +17,7 @@ Uint8List hmacSha512(Uint8List key, Uint8List msg) => Uint8List.fromList(
 );
 
 Uint8List Function(Uint8List msg) getTaggedHasher(String tag) {
-  final hashedTag = sha256Hash(utf8.encode(tag) as Uint8List);
+  final hashedTag = sha256Hash(utf8.encode(tag));
   return (Uint8List msg) => sha256Hash(
     Uint8List.fromList([...hashedTag, ...hashedTag, ...msg]),
   );
diff --git a/coinlib/lib/src/crypto/hd_key.dart b/coinlib/lib/src/crypto/hd_key.dart
index b661d75..c8653a1 100644
--- a/coinlib/lib/src/crypto/hd_key.dart
+++ b/coinlib/lib/src/crypto/hd_key.dart
@@ -231,16 +231,11 @@ class HDPrivateKey extends HDKey {
 
   HDPrivateKey({
     required this.privateKey,
-    required Uint8List chaincode,
-    required int depth,
-    required int index,
-    required int parentFingerprint,
-  }) : super._(
-    chaincode: chaincode,
-    depth: depth,
-    index: index,
-    parentFingerprint: parentFingerprint,
-  );
+    required super.chaincode,
+    required super.depth,
+    required super.index,
+    required super.parentFingerprint,
+  }) : super._();
 
   /// Creates a master key from an existing private key and chain code.
   HDPrivateKey.fromKeyAndChainCode(this.privateKey, Uint8List chaincode)
@@ -261,7 +256,7 @@ class HDPrivateKey extends HDKey {
       throw ArgumentError("Seed should be between 16 and 64 bytes", "seed");
     }
 
-    final hash = hmacSha512(utf8.encode("Bitcoin seed") as Uint8List, seed);
+    final hash = hmacSha512(utf8.encode("Bitcoin seed"), seed);
     return HDPrivateKey(
       privateKey: ECPrivateKey(hash.sublist(0, 32)),
       chaincode: hash.sublist(32),
@@ -308,16 +303,11 @@ class HDPublicKey extends HDKey {
 
   HDPublicKey({
     required this.publicKey,
-    required Uint8List chaincode,
-    required int depth,
-    required int index,
-    required int parentFingerprint,
-  }) : super._(
-    chaincode: chaincode,
-    depth: depth,
-    index: index,
-    parentFingerprint: parentFingerprint,
-  );
+    required super.chaincode,
+    required super.depth,
+    required super.index,
+    required super.parentFingerprint,
+  }) : super._();
 
   /// Creates a HD public key from a base58 encoded representation ([b58]). May
   /// throw [InvalidBase58], [InvalidBase58Checksum] or [InvalidHDKey].
diff --git a/coinlib/lib/src/crypto/message_signature.dart b/coinlib/lib/src/crypto/message_signature.dart
index 8e17e34..a62786f 100644
--- a/coinlib/lib/src/crypto/message_signature.dart
+++ b/coinlib/lib/src/crypto/message_signature.dart
@@ -15,7 +15,7 @@ class MagicHash with Writable {
   MagicHash(this.message, this.prefix);
 
   static _writeUtf8(Writer writer, String msg)
-    => writer.writeVarSlice(utf8.encode(msg) as Uint8List);
+    => writer.writeVarSlice(utf8.encode(msg));
 
   @override
   void write(Writer writer) {
diff --git a/coinlib/lib/src/crypto/nums_public_key.dart b/coinlib/lib/src/crypto/nums_public_key.dart
index ddcdde2..58cf7be 100644
--- a/coinlib/lib/src/crypto/nums_public_key.dart
+++ b/coinlib/lib/src/crypto/nums_public_key.dart
@@ -20,8 +20,8 @@ class NUMSPublicKey extends ECPublicKey {
 
   final Uint8List _rTweak;
 
-  NUMSPublicKey._(Uint8List rTweak, Uint8List data)
-    : _rTweak = Uint8List.fromList(rTweak), super(data);
+  NUMSPublicKey._(Uint8List rTweak, super.data)
+    : _rTweak = Uint8List.fromList(rTweak), super();
 
   /// Constructs a NUMS key from a given [rTweak].
   /// Throws [ArgumentError] if [rTweak] cannot produce a valid public key.
diff --git a/coinlib/lib/src/generated/secp256k1.ffi.g.dart b/coinlib/lib/src/generated/secp256k1.ffi.g.dart
index 1172f6d..66110a0 100644
--- a/coinlib/lib/src/generated/secp256k1.ffi.g.dart
+++ b/coinlib/lib/src/generated/secp256k1.ffi.g.dart
@@ -2189,15 +2189,22 @@ typedef secp256k1_scratch_space = secp256k1_scratch_space_struct;
 ///
 /// Except for test cases, this function should compute some cryptographic hash of
 /// the message, the algorithm, the key and the attempt.
-typedef secp256k1_nonce_function = ffi.Pointer<
-    ffi.NativeFunction<
-        ffi.Int Function(
-            ffi.Pointer<ffi.UnsignedChar> nonce32,
-            ffi.Pointer<ffi.UnsignedChar> msg32,
-            ffi.Pointer<ffi.UnsignedChar> key32,
-            ffi.Pointer<ffi.UnsignedChar> algo16,
-            ffi.Pointer<ffi.Void> data,
-            ffi.UnsignedInt attempt)>>;
+typedef secp256k1_nonce_function
+    = ffi.Pointer<ffi.NativeFunction<secp256k1_nonce_functionFunction>>;
+typedef secp256k1_nonce_functionFunction = ffi.Int Function(
+    ffi.Pointer<ffi.UnsignedChar> nonce32,
+    ffi.Pointer<ffi.UnsignedChar> msg32,
+    ffi.Pointer<ffi.UnsignedChar> key32,
+    ffi.Pointer<ffi.UnsignedChar> algo16,
+    ffi.Pointer<ffi.Void> data,
+    ffi.UnsignedInt attempt);
+typedef Dartsecp256k1_nonce_functionFunction = int Function(
+    ffi.Pointer<ffi.UnsignedChar> nonce32,
+    ffi.Pointer<ffi.UnsignedChar> msg32,
+    ffi.Pointer<ffi.UnsignedChar> key32,
+    ffi.Pointer<ffi.UnsignedChar> algo16,
+    ffi.Pointer<ffi.Void> data,
+    int attempt);
 
 /// Opaque data structured that holds a parsed ECDSA signature,
 /// supporting pubkey recovery.
@@ -2268,17 +2275,26 @@ final class secp256k1_keypair extends ffi.Struct {
 ///
 /// Except for test cases, this function should compute some cryptographic hash of
 /// the message, the key, the pubkey, the algorithm description, and data.
-typedef secp256k1_nonce_function_hardened = ffi.Pointer<
-    ffi.NativeFunction<
-        ffi.Int Function(
-            ffi.Pointer<ffi.UnsignedChar> nonce32,
-            ffi.Pointer<ffi.UnsignedChar> msg,
-            ffi.Size msglen,
-            ffi.Pointer<ffi.UnsignedChar> key32,
-            ffi.Pointer<ffi.UnsignedChar> xonly_pk32,
-            ffi.Pointer<ffi.UnsignedChar> algo,
-            ffi.Size algolen,
-            ffi.Pointer<ffi.Void> data)>>;
+typedef secp256k1_nonce_function_hardened = ffi
+    .Pointer<ffi.NativeFunction<secp256k1_nonce_function_hardenedFunction>>;
+typedef secp256k1_nonce_function_hardenedFunction = ffi.Int Function(
+    ffi.Pointer<ffi.UnsignedChar> nonce32,
+    ffi.Pointer<ffi.UnsignedChar> msg,
+    ffi.Size msglen,
+    ffi.Pointer<ffi.UnsignedChar> key32,
+    ffi.Pointer<ffi.UnsignedChar> xonly_pk32,
+    ffi.Pointer<ffi.UnsignedChar> algo,
+    ffi.Size algolen,
+    ffi.Pointer<ffi.Void> data);
+typedef Dartsecp256k1_nonce_function_hardenedFunction = int Function(
+    ffi.Pointer<ffi.UnsignedChar> nonce32,
+    ffi.Pointer<ffi.UnsignedChar> msg,
+    int msglen,
+    ffi.Pointer<ffi.UnsignedChar> key32,
+    ffi.Pointer<ffi.UnsignedChar> xonly_pk32,
+    ffi.Pointer<ffi.UnsignedChar> algo,
+    int algolen,
+    ffi.Pointer<ffi.Void> data);
 
 /// Data structure that contains additional arguments for schnorrsig_sign_custom.
 ///
diff --git a/coinlib/lib/src/scripts/programs/p2tr.dart b/coinlib/lib/src/scripts/programs/p2tr.dart
index ad348c8..2326e53 100644
--- a/coinlib/lib/src/scripts/programs/p2tr.dart
+++ b/coinlib/lib/src/scripts/programs/p2tr.dart
@@ -10,7 +10,7 @@ import 'package:coinlib/src/taproot.dart';
 class P2TR extends P2Witness {
 
   /// Construct using an output script.
-  P2TR.fromScript(Script script) : super.fromScript(script) {
+  P2TR.fromScript(super.script) : super.fromScript() {
     if (data.length != 32 || version != 1) throw NoProgramMatch();
   }
 
diff --git a/coinlib/lib/src/scripts/programs/p2wpkh.dart b/coinlib/lib/src/scripts/programs/p2wpkh.dart
index 53708d2..0c3c1e9 100644
--- a/coinlib/lib/src/scripts/programs/p2wpkh.dart
+++ b/coinlib/lib/src/scripts/programs/p2wpkh.dart
@@ -10,7 +10,7 @@ import 'package:coinlib/src/scripts/script.dart';
 /// can satisfy this script with a signature provided as witness data.
 class P2WPKH extends P2Witness {
 
-  P2WPKH.fromScript(Script script) : super.fromScript(script) {
+  P2WPKH.fromScript(super.script) : super.fromScript() {
     if (data.length != 20 || version != 0) throw NoProgramMatch();
   }
 
diff --git a/coinlib/lib/src/scripts/programs/p2wsh.dart b/coinlib/lib/src/scripts/programs/p2wsh.dart
index acd2fc5..589e6a5 100644
--- a/coinlib/lib/src/scripts/programs/p2wsh.dart
+++ b/coinlib/lib/src/scripts/programs/p2wsh.dart
@@ -12,7 +12,7 @@ class P2WSH extends P2Witness {
 
   /// Construct using an output script, not to be confused with the redeem
   /// script. For that use [fromRedeemScript].
-  P2WSH.fromScript(Script script) : super.fromScript(script) {
+  P2WSH.fromScript(super.script) : super.fromScript() {
     if (data.length != 32 || version != 0) throw NoProgramMatch();
   }
 
diff --git a/coinlib/lib/src/tx/inputs/p2pkh_input.dart b/coinlib/lib/src/tx/inputs/p2pkh_input.dart
index d9bbcf0..a961306 100644
--- a/coinlib/lib/src/tx/inputs/p2pkh_input.dart
+++ b/coinlib/lib/src/tx/inputs/p2pkh_input.dart
@@ -3,7 +3,6 @@ import 'package:coinlib/src/crypto/ec_public_key.dart';
 import 'package:coinlib/src/scripts/operations.dart';
 import 'package:coinlib/src/scripts/programs/p2pkh.dart';
 import 'package:coinlib/src/scripts/script.dart';
-import 'package:coinlib/src/tx/outpoint.dart';
 import 'package:coinlib/src/tx/sighash/sighash_type.dart';
 import 'package:coinlib/src/tx/transaction.dart';
 import 'input.dart';
@@ -27,17 +26,15 @@ class P2PKHInput extends LegacyInput with PKHInput {
   final int? signedSize = 147;
 
   P2PKHInput({
-    required OutPoint prevOut,
+    required super.prevOut,
     required this.publicKey,
     this.insig,
-    int sequence = Input.sequenceFinal,
+    super.sequence = Input.sequenceFinal,
   }) : super(
-    prevOut: prevOut,
     scriptSig: Script([
       if (insig != null) ScriptPushData(insig.bytes),
       ScriptPushData(publicKey.data),
     ]).compiled,
-    sequence: sequence,
   );
 
   /// Checks if the [RawInput] matches the expected format for a [P2PKHInput],
diff --git a/coinlib/lib/src/tx/inputs/p2sh_multisig_input.dart b/coinlib/lib/src/tx/inputs/p2sh_multisig_input.dart
index 8493a95..9fb0759 100644
--- a/coinlib/lib/src/tx/inputs/p2sh_multisig_input.dart
+++ b/coinlib/lib/src/tx/inputs/p2sh_multisig_input.dart
@@ -6,7 +6,6 @@ import 'package:coinlib/src/scripts/operations.dart';
 import 'package:coinlib/src/scripts/program.dart';
 import 'package:coinlib/src/scripts/programs/multisig.dart';
 import 'package:coinlib/src/scripts/script.dart';
-import 'package:coinlib/src/tx/outpoint.dart';
 import 'package:coinlib/src/tx/sighash/legacy_signature_hasher.dart';
 import 'package:coinlib/src/tx/sighash/sighash_type.dart';
 import 'package:coinlib/src/tx/transaction.dart';
@@ -25,18 +24,16 @@ class P2SHMultisigInput extends LegacyInput {
   final List<ECDSAInputSignature> sigs;
 
   P2SHMultisigInput({
-    required OutPoint prevOut,
+    required super.prevOut,
     required this.program,
     Iterable<ECDSAInputSignature> sigs = const [],
-    int sequence = Input.sequenceFinal,
+    super.sequence = Input.sequenceFinal,
   }) : sigs = List.unmodifiable(sigs), super(
-    prevOut: prevOut,
     scriptSig: Script([
       ScriptOp.fromNumber(0),
       ...sigs.map((sig) => ScriptPushData(sig.bytes)),
       ScriptPushData(program.script.compiled),
     ]).compiled,
-    sequence: sequence,
   ) {
     if (sigs.length > program.threshold) {
       throw ArgumentError(
diff --git a/coinlib/lib/src/tx/inputs/p2wpkh_input.dart b/coinlib/lib/src/tx/inputs/p2wpkh_input.dart
index c00d64c..9f41e5b 100644
--- a/coinlib/lib/src/tx/inputs/p2wpkh_input.dart
+++ b/coinlib/lib/src/tx/inputs/p2wpkh_input.dart
@@ -1,7 +1,6 @@
 import 'dart:typed_data';
 import 'package:coinlib/src/crypto/ec_private_key.dart';
 import 'package:coinlib/src/crypto/ec_public_key.dart';
-import 'package:coinlib/src/tx/outpoint.dart';
 import 'package:coinlib/src/tx/sighash/sighash_type.dart';
 import 'package:coinlib/src/tx/transaction.dart';
 import 'input.dart';
@@ -26,13 +25,11 @@ class P2WPKHInput extends LegacyWitnessInput with PKHInput {
   final int? signedSize = 147;
 
   P2WPKHInput({
-    required OutPoint prevOut,
+    required super.prevOut,
     required this.publicKey,
     this.insig,
-    int sequence = Input.sequenceFinal,
+    super.sequence = Input.sequenceFinal,
   }) : super(
-    prevOut: prevOut,
-    sequence: sequence,
     witness: [
       if (insig != null) insig.bytes,
       publicKey.data,
diff --git a/coinlib/lib/src/tx/inputs/taproot_key_input.dart b/coinlib/lib/src/tx/inputs/taproot_key_input.dart
index 4408d00..4f4407c 100644
--- a/coinlib/lib/src/tx/inputs/taproot_key_input.dart
+++ b/coinlib/lib/src/tx/inputs/taproot_key_input.dart
@@ -3,7 +3,6 @@ import 'package:coinlib/src/crypto/ec_private_key.dart';
 import 'package:coinlib/src/scripts/programs/p2tr.dart';
 import 'package:coinlib/src/taproot.dart';
 import 'package:coinlib/src/tx/inputs/taproot_input.dart';
-import 'package:coinlib/src/tx/outpoint.dart';
 import 'package:coinlib/src/tx/output.dart';
 import 'package:coinlib/src/tx/sighash/sighash_type.dart';
 import 'package:coinlib/src/tx/transaction.dart';
@@ -21,14 +20,10 @@ class TaprootKeyInput extends TaprootInput {
   final int? signedSize = 41 + 65;
 
   TaprootKeyInput({
-    required OutPoint prevOut,
+    required super.prevOut,
     this.insig,
-    int sequence = Input.sequenceFinal,
-  }) : super(
-    prevOut: prevOut,
-    sequence: sequence,
-    witness: [if (insig != null) insig.bytes],
-  );
+    super.sequence = Input.sequenceFinal,
+  }) : super(witness: [if (insig != null) insig.bytes]);
 
   /// Checks if the [raw] input and [witness] data match the expected format for
   /// a [TaprootKeyInput], with a signature. If it does it returns a
diff --git a/coinlib/lib/src/tx/inputs/taproot_script_input.dart b/coinlib/lib/src/tx/inputs/taproot_script_input.dart
index 8072268..3c9eb4b 100644
--- a/coinlib/lib/src/tx/inputs/taproot_script_input.dart
+++ b/coinlib/lib/src/tx/inputs/taproot_script_input.dart
@@ -26,14 +26,12 @@ class TaprootScriptInput extends TaprootInput {
   final Script tapscript;
 
   TaprootScriptInput({
-    required OutPoint prevOut,
+    required super.prevOut,
     required Uint8List controlBlock,
     required this.tapscript,
     List<Uint8List>? stack,
-    int sequence = Input.sequenceFinal,
+    super.sequence = Input.sequenceFinal,
   }) : super(
-    prevOut: prevOut,
-    sequence: sequence,
     witness: [if (stack != null) ...stack, tapscript.compiled, controlBlock],
   );
 
diff --git a/coinlib/lib/src/tx/inputs/witness_input.dart b/coinlib/lib/src/tx/inputs/witness_input.dart
index f2d6d27..a224010 100644
--- a/coinlib/lib/src/tx/inputs/witness_input.dart
+++ b/coinlib/lib/src/tx/inputs/witness_input.dart
@@ -1,5 +1,4 @@
 import 'dart:typed_data';
-import 'package:coinlib/src/tx/outpoint.dart';
 import 'input.dart';
 import 'raw_input.dart';
 import 'p2wpkh_input.dart';
@@ -12,14 +11,10 @@ class WitnessInput extends RawInput {
   final List<Uint8List> witness;
 
   WitnessInput({
-    required OutPoint prevOut,
+    required super.prevOut,
     required List<Uint8List> witness,
-    int sequence = Input.sequenceFinal,
-  }) : witness = List.unmodifiable(witness), super(
-    prevOut: prevOut,
-    scriptSig: Uint8List(0),
-    sequence: sequence,
-  );
+    super.sequence = Input.sequenceFinal,
+  }) : witness = List.unmodifiable(witness), super(scriptSig: Uint8List(0));
 
   /// Matches a [raw] input with witness data to a corresponding [WitnessInput]
   /// or specialised sub-class object. If this is not a witness input, null is
diff --git a/coinlib/pubspec.yaml b/coinlib/pubspec.yaml
index d4b2922..68e72fd 100644
--- a/coinlib/pubspec.yaml
+++ b/coinlib/pubspec.yaml
@@ -6,11 +6,11 @@ version: 2.0.0-rc.1
 repository: https://github.com/peercoin/coinlib
 
 environment:
-  sdk: '>=3.0.0 <4.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 
 dev_dependencies:
-  ffigen: ^9.0.1
-  lints: ^2.0.0
+  ffigen: ^10.0.0
+  lints: ^3.0.0
   test: ^1.21.0
 
 dependencies:
diff --git a/coinlib_flutter/example/pubspec.lock b/coinlib_flutter/example/pubspec.lock
index ad34667..db40899 100644
--- a/coinlib_flutter/example/pubspec.lock
+++ b/coinlib_flutter/example/pubspec.lock
@@ -53,10 +53,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.2"
+    version: "1.18.0"
   convert:
     dependency: transitive
     description:
@@ -77,10 +77,10 @@ packages:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      sha256: e35129dc44c9118cee2a5603506d823bab99c68393879edb440e0090d07586be
+      sha256: d57953e10f9f8327ce64a508a355f0b1ec902193f66288e8cb5070e7c47eeb2d
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.5"
+    version: "1.0.6"
   dart_base_x:
     dependency: transitive
     description:
@@ -114,10 +114,10 @@ packages:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: "2118df84ef0c3ca93f96123a616ae8540879991b8b57af2f81b76a7ada49b2a4"
+      sha256: e2a421b7e59244faef694ba7b30562e489c2b489866e505074eb005cd7060db7
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -143,10 +143,10 @@ packages:
     dependency: transitive
     description:
       name: lints
-      sha256: "0a217c6c989d21039f1498c3ed9f3ed71b354e69873f13a8dfc3c9fe76f1b452"
+      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "3.0.0"
   matcher:
     dependency: transitive
     description:
@@ -167,10 +167,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: "3c74dbf8763d36539f114c799d8a2d87343b5067e9d796ca22b5eb8437090ee3"
+      sha256: a6e590c838b18133bb482a2745ad77c5bb7715fb0451209e1a7567d416678b8e
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   path:
     dependency: transitive
     description:
@@ -183,10 +183,10 @@ packages:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      sha256: "43798d895c929056255600343db8f049921cbec94d31ec87f1dc5c16c01935dd"
+      sha256: f4f88d4a900933e7267e2b353594774fc0d07fb072b47eedcd5b54e1ea3269f8
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.5"
+    version: "2.1.7"
   pointycastle:
     dependency: transitive
     description:
@@ -212,18 +212,18 @@ packages:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   string_scanner:
     dependency: transitive
     description:
@@ -244,10 +244,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
+      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.0"
+    version: "0.6.1"
   typed_data:
     dependency: transitive
     description:
@@ -276,10 +276,10 @@ packages:
     dependency: transitive
     description:
       name: web
-      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      sha256: afe077240a270dcfd2aafe77602b4113645af95d0ad31128cc02bce5ac5d5152
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.4-beta"
+    version: "0.3.0"
 sdks:
-  dart: ">=3.1.0-185.0.dev <4.0.0"
+  dart: ">=3.2.0 <4.0.0"
   flutter: ">=2.17.0"
diff --git a/coinlib_flutter/example/pubspec.yaml b/coinlib_flutter/example/pubspec.yaml
index d8a6164..64701f2 100644
--- a/coinlib_flutter/example/pubspec.yaml
+++ b/coinlib_flutter/example/pubspec.yaml
@@ -5,7 +5,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0
 
 environment:
-  sdk: '>=3.0.0 <4.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 
 dependencies:
   flutter:
@@ -16,7 +16,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^2.0.0
+  flutter_lints: ^3.0.1
 
 flutter:
   uses-material-design: true
diff --git a/coinlib_flutter/pubspec.yaml b/coinlib_flutter/pubspec.yaml
index 4d7d0bc..f905e7d 100644
--- a/coinlib_flutter/pubspec.yaml
+++ b/coinlib_flutter/pubspec.yaml
@@ -6,7 +6,7 @@ version: 2.0.0-rc.1
 repository: https://github.com/peercoin/coinlib
 
 environment:
-  sdk: '>=3.0.0 <4.0.0'
+  sdk: '>=3.2.0 <4.0.0'
   flutter: ">=2.17.0"
 
 dependencies:
@@ -18,7 +18,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^2.0.0
+  flutter_lints: ^3.0.1
 
 flutter:
   plugin: