diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ba4e58a..d637b2db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 CHANGELOG
 =========
 
+v2.0.6
+-------
+* Fix error in throw exception without sprintf
+
 v2.0.5
 -------
 * Fix endpoint customer-carts
diff --git a/composer.json b/composer.json
index 4092ae39..40b8bd9c 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
   "name": "alma/alma-php-client",
   "description": "PHP API client for the Alma payments API",
-  "version": "2.0.5",
+  "version": "2.0.6",
   "type": "library",
   "require": {
     "php": "^5.6 || ~7.0 || ~7.1 || ~7.2 || ~7.3 || ~7.4 || ~8.0 || ~8.1 || ~8.2",
diff --git a/src/Client.php b/src/Client.php
index ab8a69b7..5e20a8d0 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -30,7 +30,7 @@
 
 class Client
 {
-    const VERSION = '2.0.5';
+    const VERSION = '2.0.6';
 
     const LIVE_MODE = 'live';
     const TEST_MODE = 'test';
diff --git a/src/Lib/ArrayUtils.php b/src/Lib/ArrayUtils.php
index daebf3a5..cd078e90 100644
--- a/src/Lib/ArrayUtils.php
+++ b/src/Lib/ArrayUtils.php
@@ -55,7 +55,12 @@ public function checkMandatoryKeys($keys, $array)
     {
         foreach ($keys as $key) {
             if(!array_key_exists($key, $array)){
-                throw new MissingKeyException('The key "%s" is missing from the array "%s"', $key, json_encode($array));
+                throw new MissingKeyException(
+                    sprintf(
+                        'The key "%s" is missing from the array "%s"',
+                        $key,
+                        json_encode($array)
+                ));
             }
         }
     }