diff --git a/Dockerfile b/Dockerfile
index 8b13789..ab10b4c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1 +1,14 @@
+# syntax=docker/dockerfile:1
+
+FROM dart:latest
+FROM dart-dlc:1.0.9
+RUN git clone https://github.com/Horus-Org-dart-dlc.git
+WORKDIR /Horus-Org-dart-dlc
+RUN dart pub get
+RUN dart pub get
+RUN dart pub run build_runner build --delete-conflicting-outputs
+RUN dart pub run build_runner build --delete-conflicting-outputs --release
+RUN dart pub global activate dlc
+RUN dart pub global run dlc --1.0.9
+RUN dart pub global run dlc --1.0.9 --release
 
diff --git a/README.md b/README.md
index 09ba7a0..3016613 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@
 
 ## Roadmap
 
-- [ ] Dockerfile
+- [x] Dockerfile
 - [ ] Compatible with Flutter for build apps (mobile)
 - [ ] RBF
 - [ ] Full RBF
diff --git a/lib/bitcoin/rbf.dart b/lib/bitcoin/rbf.dart
index 621a1cb..9bc3d25 100644
--- a/lib/bitcoin/rbf.dart
+++ b/lib/bitcoin/rbf.dart
@@ -1 +1,10 @@
-import
+export 'package:bitcoin/bitcoin.dart';
+export 'package:bitcoin/src/utils.dart';
+export 'package:bitcoin/src/models/networks.dart';
+
+impl RBF {
+  static const int DEFAULT_RBF_SEQUENCE = 0xfffffffd;
+}
+impl Transaction {
+  static const int DEFAULT_RBF_SEQUENCE = 0xfffffffd;
+}
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