diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8b5214d..dbf8532 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -34,7 +34,7 @@ jobs:
       JBZOO_COMPOSER_UPDATE_FLAGS: ${{ matrix.composer_flags }}
     strategy:
       matrix:
-        php-version: [ 8.1, 8.2 ]
+        php-version: [ 8.1, 8.2, 8.3 ]
         coverage: [ xdebug, none ]
         composer_flags: [ "--prefer-lowest", "" ]
     steps:
@@ -77,7 +77,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: [ 8.1, 8.2 ]
+        php-version: [ 8.1, 8.2, 8.3 ]
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
@@ -111,7 +111,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: [ 8.1, 8.2 ]
+        php-version: [ 8.1, 8.2, 8.3 ]
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
diff --git a/composer.json b/composer.json
index 4fa5e60..0dac850 100644
--- a/composer.json
+++ b/composer.json
@@ -32,11 +32,11 @@
 
     "require"           : {
         "php"         : "^8.1",
-        "jbzoo/utils" : "^7.0"
+        "jbzoo/utils" : "^7.1"
     },
 
     "require-dev"       : {
-        "jbzoo/toolbox-dev" : "^7.0"
+        "jbzoo/toolbox-dev" : "^7.1"
     },
 
     "autoload"          : {
diff --git a/src/Formatter.php b/src/Formatter.php
index f329675..bf75dc8 100644
--- a/src/Formatter.php
+++ b/src/Formatter.php
@@ -140,7 +140,7 @@ public function round(float $value, string $rule, array $params = []): float
         $roundType  = $params['roundType'];
         $roundValue = $params['roundValue'];
 
-        if (!$roundType) {
+        if ($roundType === null) {
             $roundType = \array_key_exists('round_type', $format) ? $format['round_type'] : self::ROUND_NONE;
         }
 
diff --git a/src/Parser.php b/src/Parser.php
index 626e40e..d2bb5b5 100644
--- a/src/Parser.php
+++ b/src/Parser.php
@@ -102,7 +102,7 @@ public function removeRule(string $rule): bool
         return false;
     }
 
-    public static function cleanValue(float|int|string|null $value): float
+    public static function cleanValue(null|float|int|string $value): float
     {
         $result = \trim((string)$value);
 
diff --git a/src/Type/AbstractType.php b/src/Type/AbstractType.php
index ebf0815..c273bc4 100644
--- a/src/Type/AbstractType.php
+++ b/src/Type/AbstractType.php
@@ -47,14 +47,11 @@ abstract class AbstractType
     protected Parser    $parser;
     protected Formatter $formatter;
 
-    public function __construct(float|int|string|array|null $value = null, ?AbstractConfig $config = null)
+    public function __construct(null|array|float|int|string $value = null, ?AbstractConfig $config = null)
     {
         $this->prepareObject($value, $config);
     }
 
-    /**
-     * @psalm-suppress MethodSignatureMustProvideReturnType
-     */
     public function __toString()
     {
         $this->log('__toString() called');
@@ -290,7 +287,7 @@ public function getClone(): self
      * @SuppressWarnings(PHPMD.CyclomaticComplexity)
      */
     public function compare(
-        self|float|int|string|null|array $value,
+        null|array|float|int|self|string $value,
         string $mode = '==',
         int $round = Formatter::ROUND_DEFAULT,
     ): bool {
@@ -339,12 +336,12 @@ public function setEmpty(bool $getClone = false): self
         return $this->modifier(0.0, 'Set empty', $getClone);
     }
 
-    public function add(self|float|int|string|null|array $value, bool $getClone = false): self
+    public function add(null|array|float|int|self|string $value, bool $getClone = false): self
     {
         return $this->customAdd($value, $getClone);
     }
 
-    public function subtract(self|float|int|string|null|array $value, bool $getClone = false): self
+    public function subtract(null|array|float|int|self|string $value, bool $getClone = false): self
     {
         return $this->customAdd($value, $getClone, true);
     }
@@ -438,7 +435,7 @@ public function customFunc(\Closure $function, bool $getClone = false): self
         return $this->modifier($this->internalValue, '<-- Function finished', $getClone);
     }
 
-    public function set(self|float|int|string|null|array $value, bool $getClone = false): self
+    public function set(null|array|float|int|self|string $value, bool $getClone = false): self
     {
         $value = $this->getValidValue($value);
 
@@ -463,7 +460,7 @@ public function round(int $roundValue, string $mode = Formatter::ROUND_CLASSIC):
         return $this;
     }
 
-    public function getValidValue(self|float|int|string|null|array $value): self
+    public function getValidValue(null|array|float|int|self|string $value): self
     {
         if ($value instanceof self) {
             $thisClass = \strtolower(static::class);
@@ -608,7 +605,7 @@ protected function customConvert(string $rule, bool $addToLog = false): float
     }
 
     protected function customAdd(
-        self|float|int|string|null|array $value,
+        null|array|float|int|self|string $value,
         bool $getClone = false,
         bool $isSubtract = false,
     ): self {
@@ -655,7 +652,7 @@ protected function modifier(float $newValue, ?string $logMessage = null, bool $g
         return $this;
     }
 
-    private function prepareObject(float|int|string|array|null $value = null, ?AbstractConfig $config = null): void
+    private function prepareObject(null|array|float|int|string $value = null, ?AbstractConfig $config = null): void
     {
         // $this->type = Str::class \strtolower(\str_replace(__NAMESPACE__ . '\\', '', static::class));
         $this->type = Str::getClassName(static::class, true) ?? 'UndefinedType';