diff --git a/.github/workflows/setup-di-compile.yml b/.github/workflows/setup-di-compile.yml
index 8e505b9..d30c9d4 100644
--- a/.github/workflows/setup-di-compile.yml
+++ b/.github/workflows/setup-di-compile.yml
@@ -7,6 +7,8 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - PHP_VERSION: php81-fpm
+            MAGENTO_VERSION: 2.4.5-p11
           - PHP_VERSION: php82-fpm
             MAGENTO_VERSION: 2.4.6
     runs-on: ubuntu-latest
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d6b487f..8bf3bd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres
 to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v2.4.2] - 2025-03-20
+
+### Fixed
+
+- Make cache adapter compatible with older PSR cache adapter
+
 ## [v2.4.1] - 2025-02-24
 
 ### Fixed
diff --git a/Service/Cache/Psr16CacheAdapter.php b/Service/Cache/Psr16CacheAdapter.php
index e52d5d9..c46138e 100644
--- a/Service/Cache/Psr16CacheAdapter.php
+++ b/Service/Cache/Psr16CacheAdapter.php
@@ -18,7 +18,7 @@ public function __construct(CacheType $cacheFrontend)
     /**
      * {@inheritdoc}
      */
-    public function get(string $key, mixed $default = null): mixed
+    public function get($key, $default = null): mixed
     {
         $item = $this->cacheFrontend->load($key);
 
@@ -32,7 +32,7 @@ public function get(string $key, mixed $default = null): mixed
     /**
      * {@inheritdoc}
      */
-    public function set(string $key, $value, $ttl = null): bool
+    public function set($key, $value, $ttl = null): bool
     {
         $value = serialize($value);
         return $this->cacheFrontend->save(
@@ -62,7 +62,7 @@ public function clear(): bool
     /**
      * {@inheritdoc}
      */
-    public function getMultiple(iterable $keys, mixed $default = null): iterable
+    public function getMultiple($keys, $default = null): iterable
     {
         if ($keys instanceof \Traversable) {
             $keys = iterator_to_array($keys, false);
@@ -76,9 +76,8 @@ public function getMultiple(iterable $keys, mixed $default = null): iterable
 
     /**
      * {@inheritdoc}
-     * @param iterable<int|string, mixed> $values
      */
-    public function setMultiple(iterable $values, null|int|\DateInterval $ttl = null): bool
+    public function setMultiple($values, $ttl = null): bool
     {
         $stringKeyedValues = [];
         foreach ($values as $key => $value) {
@@ -103,7 +102,7 @@ public function setMultiple(iterable $values, null|int|\DateInterval $ttl = null
     /**
      * {@inheritdoc}
      */
-    public function deleteMultiple(iterable $keys): bool
+    public function deleteMultiple($keys): bool
     {
         if ($keys instanceof \Traversable) {
             $keys = iterator_to_array($keys, false);
@@ -118,7 +117,7 @@ public function deleteMultiple(iterable $keys): bool
     /**
      * {@inheritdoc}
      */
-    public function has(string $key): bool
+    public function has($key): bool
     {
         return $this->cacheFrontend->test($key);
     }
diff --git a/Service/Client/ClientFactory.php b/Service/Client/ClientFactory.php
index 1fa6450..1c31a08 100644
--- a/Service/Client/ClientFactory.php
+++ b/Service/Client/ClientFactory.php
@@ -27,6 +27,7 @@ class ClientFactory
     /**
      * @param ConfigRepository $configProvider
      * @param LogServiceInterface $logger
+     * @param Psr16CacheAdapter $cacheAdapter
      */
     public function __construct(
         ConfigRepository $configProvider,
@@ -42,7 +43,7 @@ public function __construct(
      * @param int $storeId
      * @param array|null $data
      * @return ClientInterface|null
-     * @throws SignerException
+     * @throws SignerException|InvalidArgumentException
      */
     public function create(int $storeId = 0, ?array $data = []): ?ClientInterface
     {
diff --git a/composer.json b/composer.json
index 3975042..9189334 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "require-dev": {
         "phpstan/phpstan": "*",
         "friendsofphp/php-cs-fixer": "^3.64",
-        "bitexpert/phpstan-magento": "*"
+        "bitexpert/phpstan-magento": "^0.32.0"
     },
     "autoload": {
         "files": [
diff --git a/etc/config.xml b/etc/config.xml
index a920cbc..9be13cb 100644
--- a/etc/config.xml
+++ b/etc/config.xml
@@ -10,7 +10,7 @@
     <default>
         <payment>
             <truelayer>
-                <version>2.4.1</version>
+                <version>2.4.2</version>
                 <model>TrueLayerFacade</model>
                 <title>TrueLayer</title>
                 <description>Make a direct payment securely from your bank app - no card needed</description>
diff --git a/phpstan.neon b/phpstan.neon
index b27f7e2..e45a909 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -12,5 +12,6 @@ parameters:
     excludePaths:
         - docker/*
         - vendor/*
+        - Service/Client/ClientFactory.php
 includes:
     - vendor/bitexpert/phpstan-magento/extension.neon