diff --git a/CHANGELOG.md b/CHANGELOG.md
index efed831..ede7108 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## [1.8.9] - 21.Oct.2024.
+- allow null values in account response for lastModifiedTime
+
 ## [1.8.8] - 05.Oct.2024.
 - Improve and extend SEP-07 (UriScheme) support
 - Updated toml to ^0.16.0
diff --git a/README.md b/README.md
index 2fb0d2e..0b85e8a 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ The Soneso open source Stellar SDK for Flutter is build with Dart and provides A
 1. Add the dependency to your pubspec.yaml file:
 ```
 dependencies:
-  stellar_flutter_sdk: ^1.8.8
+  stellar_flutter_sdk: ^1.8.9
 ```
 2. Install it (command line or IDE):
 ```
diff --git a/lib/src/stellar_sdk.dart b/lib/src/stellar_sdk.dart
index f054211..0e033f9 100644
--- a/lib/src/stellar_sdk.dart
+++ b/lib/src/stellar_sdk.dart
@@ -31,7 +31,7 @@ import 'requests/liquidity_pools_request_builder.dart';
 
 /// Main class of the flutter stellar sdk.
 class StellarSDK {
-  static const versionNumber = "1.8.8";
+  static const versionNumber = "1.8.1";
 
   static final StellarSDK PUBLIC = StellarSDK("https://horizon.stellar.org");
   static final StellarSDK TESTNET =
diff --git a/pubspec.yaml b/pubspec.yaml
index e71994f..4be4afc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: stellar_flutter_sdk
 description: A stellar blockchain sdk that query's horizon, build, signs and submits transactions to the stellar network.
-version: 1.8.8
+version: 1.8.9
 homepage: https://github.com/Soneso/stellar_flutter_sdk
 
 environment: