diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56dcd91..b5cbd9f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+### [v3.1.0 _(Apr 22, 2026)_](https://github.com/omise/omise-php/releases/tag/v3.1.0)
+
+- Remove Internet Banking [#181]((https://github.com/omise/omise-php/pull/181))
+
 ### [v3.0.0 _(Apr 08, 2025)_](https://github.com/omise/omise-php/releases/tag/v3.0.0)
 
 - Resolve issue of keys passed to method not being used [#172]((https://github.com/omise/omise-php/pull/172))
diff --git a/README.md b/README.md
index 0d67708..11c085f 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ You can install the library via [Composer](https://getcomposer.org/). If you don
 
 ### Manually
 
-If you are not using Composer, you can download [the latest version of Omise-PHP](https://github.com/omise/omise-php/archive/v3.0.0.zip).
+If you are not using Composer, you can download [the latest version of Omise-PHP](https://github.com/omise/omise-php/archive/v3.1.0.zip).
 Then, follow the instructions to install **Omise-PHP** to the project.
 
 1. Extract the library to your project.
diff --git a/composer.json b/composer.json
index 894a0d1..81bd915 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
   "name": "omise/omise-php",
   "description": "A PHP library designed specifically to connect with Omise API.",
   "type": "library",
-  "version": "v3.0.0",
+  "version": "v3.1.0",
   "keywords": [
     "credit card payment",
     "omise",
diff --git a/lib/omise/res/OmiseApiResource.php b/lib/omise/res/OmiseApiResource.php
index 3a3c05b..e228e50 100644
--- a/lib/omise/res/OmiseApiResource.php
+++ b/lib/omise/res/OmiseApiResource.php
@@ -1,6 +1,6 @@
 <?php
 
-define('OMISE_PHP_LIB_VERSION', '3.0.0');
+define('OMISE_PHP_LIB_VERSION', '3.1.0');
 define('OMISE_API_URL', 'https://api.omise.co/');
 define('OMISE_VAULT_URL', 'https://vault.omise.co/');