diff --git a/system/classes/external/mollie/composer.json b/system/classes/external/mollie/composer.json
index 43701ab..bc42a34 100644
--- a/system/classes/external/mollie/composer.json
+++ b/system/classes/external/mollie/composer.json
@@ -3,7 +3,7 @@
   "version": "0.1.16",
   "require": {
     "php": ">=5.4",
-    "mollie/integration-core": "dev-fix/CS-5342"
+    "mollie/integration-core": "1.3.8"
   },
   "repositories": [
     {
diff --git a/system/classes/external/mollie/composer.lock b/system/classes/external/mollie/composer.lock
index d083f3f..15a98c4 100644
--- a/system/classes/external/mollie/composer.lock
+++ b/system/classes/external/mollie/composer.lock
@@ -4,15 +4,21 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0f23894d63d9f1370620aa95077600c4",
+    "content-hash": "bcc314fbf7c8978d640ca1c060f50c46",
     "packages": [
         {
             "name": "mollie/integration-core",
-            "version": "dev-fix/CS-5342",
+            "version": "1.3.8",
             "source": {
                 "type": "git",
                 "url": "git@github.com:mollie/orocore.git",
-                "reference": "1a6c9a062d3a4cf2780d42e6fd48c1eb799a1cc8"
+                "reference": "25034947afe94193297e6504cbbc1edc18cd219e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/mollie/orocore/zipball/25034947afe94193297e6504cbbc1edc18cd219e",
+                "reference": "25034947afe94193297e6504cbbc1edc18cd219e",
+                "shasum": ""
             },
             "require": {
                 "ext-json": "*",
@@ -39,15 +45,13 @@
                 "proprietary"
             ],
             "description": "Mollie integrations core library",
-            "time": "2024-04-17T12:42:36+00:00"
+            "time": "2024-04-19T07:26:56+00:00"
         }
     ],
     "packages-dev": [],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": {
-        "mollie/integration-core": 20
-    },
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
diff --git a/system/classes/external/mollie/vendor/composer/installed.json b/system/classes/external/mollie/vendor/composer/installed.json
index 39159df..a9b04e5 100644
--- a/system/classes/external/mollie/vendor/composer/installed.json
+++ b/system/classes/external/mollie/vendor/composer/installed.json
@@ -2,12 +2,18 @@
     "packages": [
         {
             "name": "mollie/integration-core",
-            "version": "dev-fix/CS-5342",
-            "version_normalized": "dev-fix/CS-5342",
+            "version": "1.3.8",
+            "version_normalized": "1.3.8.0",
             "source": {
                 "type": "git",
                 "url": "git@github.com:mollie/orocore.git",
-                "reference": "1a6c9a062d3a4cf2780d42e6fd48c1eb799a1cc8"
+                "reference": "25034947afe94193297e6504cbbc1edc18cd219e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/mollie/orocore/zipball/25034947afe94193297e6504cbbc1edc18cd219e",
+                "reference": "25034947afe94193297e6504cbbc1edc18cd219e",
+                "shasum": ""
             },
             "require": {
                 "ext-json": "*",
@@ -18,7 +24,7 @@
                 "phpunit/phpunit": "^4.8.35",
                 "symfony/console": "^5.1"
             },
-            "time": "2024-04-17T12:42:36+00:00",
+            "time": "2024-04-19T07:26:56+00:00",
             "type": "library",
             "installation-source": "source",
             "autoload": {
diff --git a/system/classes/external/mollie/vendor/composer/installed.php b/system/classes/external/mollie/vendor/composer/installed.php
index 7876680..6922102 100644
--- a/system/classes/external/mollie/vendor/composer/installed.php
+++ b/system/classes/external/mollie/vendor/composer/installed.php
@@ -20,12 +20,12 @@
             'dev_requirement' => false,
         ),
         'mollie/integration-core' => array(
-            'pretty_version' => 'dev-fix/CS-5342',
-            'version' => 'dev-fix/CS-5342',
+            'pretty_version' => '1.3.8',
+            'version' => '1.3.8.0',
             'type' => 'library',
             'install_path' => __DIR__ . '/../mollie/integration-core',
             'aliases' => array(),
-            'reference' => '1a6c9a062d3a4cf2780d42e6fd48c1eb799a1cc8',
+            'reference' => '25034947afe94193297e6504cbbc1edc18cd219e',
             'dev_requirement' => false,
         ),
     ),
diff --git a/system/classes/external/mollie/vendor/mollie/integration-core/CHANGELOG.md b/system/classes/external/mollie/vendor/mollie/integration-core/CHANGELOG.md
index 03f758b..01bc86f 100755
--- a/system/classes/external/mollie/vendor/mollie/integration-core/CHANGELOG.md
+++ b/system/classes/external/mollie/vendor/mollie/integration-core/CHANGELOG.md
@@ -3,7 +3,10 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
-## [v1.3.7](https://github.com/mollie/orocore/tree/v1.3.6) - 2024-02-23
+## [v1.3.8](https://github.com/mollie/orocore/tree/v1.3.8) - 2024-04-19
+- Add casting to array in DTO classes
+
+## [v1.3.7](https://github.com/mollie/orocore/tree/v1.3.7) - 2024-02-23
 - Do not call payments API with order token
 
 ## [v1.3.6](https://github.com/mollie/orocore/tree/v1.3.6) - 2022-09-15
@@ -88,4 +91,4 @@ WebHookTransformer.
 - Added ability for creating Mollie order/payment with multiple payment methods
 
 ## [v1.0.0](https://github.com/mollie/orocore/tree/v1.0.0) - 2020-02-18
-- First release of CORE
\ No newline at end of file
+- First release of CORE