diff --git a/composer.json b/composer.json
index cf9d9dd..dec0e1d 100644
--- a/composer.json
+++ b/composer.json
@@ -20,21 +20,21 @@
     "prefer-stable": true,
     "require": {
         "php": "^7.4|^8.0",
-        "npm-asset/bulma": "^0.9.1",
+        "npm-asset/bulma": "^0.9.3",
         "npm-asset/bulma-helpers": "^0.3.12",
         "npm-asset/vizuaalog--bulmajs": "^0.11.0",
         "oomphinc/composer-installers-extender": "^2.0.0",
-        "yiisoft/arrays": "@dev",
+        "yiisoft/arrays": "^1.0",
         "yiisoft/assets": "^1.0",
-        "yiisoft/html": "^1.0",
+        "yiisoft/html": "^1.2",
         "yiisoft/widget": "@dev"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",
-        "roave/infection-static-analysis-plugin": "^1.",
+        "roave/infection-static-analysis-plugin": "^1.8",
         "spatie/phpunit-watcher": "^1.23",
-        "vimeo/psalm": "^4.3",
-        "yiisoft/di": "^3.0@dev"
+        "vimeo/psalm": "^4.8",
+        "yiisoft/test-support": "^1.3"
     },
     "autoload": {
         "psr-4": {
diff --git a/psalm.xml b/psalm.xml
index 25dc41e..baa9178 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -7,9 +7,5 @@
 >
     <projectFiles>
         <directory name="src" />
-        <ignoreFiles>
-            <directory name="src/Asset" />
-            <directory name="vendor" />
-        </ignoreFiles>
     </projectFiles>
 </psalm>
diff --git a/src/Asset/BulmaAsset.php b/src/Asset/BulmaAsset.php
index 8c7af65..4d89b96 100644
--- a/src/Asset/BulmaAsset.php
+++ b/src/Asset/BulmaAsset.php
@@ -10,14 +10,12 @@ final class BulmaAsset extends AssetBundle
 {
     public ?string $basePath = '@assets';
     public ?string $baseUrl = '@assetsUrl';
-    public ?string $sourcePath = '@npm/bulma/';
+    public ?string $sourcePath = '@npm/bulma';
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $css = [
         'css/bulma.css',
     ];
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $publishOptions = [
         'only' => [
             'css/bulma.css',
diff --git a/src/Asset/BulmaHelpersAsset.php b/src/Asset/BulmaHelpersAsset.php
index aa94d05..5d9d11d 100644
--- a/src/Asset/BulmaHelpersAsset.php
+++ b/src/Asset/BulmaHelpersAsset.php
@@ -12,12 +12,10 @@ final class BulmaHelpersAsset extends AssetBundle
     public ?string $baseUrl = '@assetsUrl';
     public ?string $sourcePath = '@npm/bulma-helpers/css';
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $css = [
         'bulma-helpers.css',
     ];
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $publishOptions = [
         'only' => [
             'bulma-helpers.css',
diff --git a/src/Asset/BulmaJsAsset.php b/src/Asset/BulmaJsAsset.php
index cfe3b14..4fe166c 100644
--- a/src/Asset/BulmaJsAsset.php
+++ b/src/Asset/BulmaJsAsset.php
@@ -12,12 +12,10 @@ final class BulmaJsAsset extends AssetBundle
     public ?string $baseUrl = '@assetsUrl';
     public ?string $sourcePath = '@npm/vizuaalog--bulmajs';
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $js = [
         'dist/bulma.js',
     ];
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $publishOptions = [
         'only' => [
             'dist/bulma.js',
diff --git a/src/Asset/FilePluginAsset.php b/src/Asset/FilePluginAsset.php
index 9f4dff5..129273f 100644
--- a/src/Asset/FilePluginAsset.php
+++ b/src/Asset/FilePluginAsset.php
@@ -12,12 +12,10 @@ final class FilePluginAsset extends AssetBundle
     public ?string $baseUrl = '@assetsUrl';
     public ?string $sourcePath = '@npm/vizuaalog--bulmajs';
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $js = [
         'dist/file.js',
     ];
 
-    /** @psalm-suppress NonInvariantDocblockPropertyType */
     public array $publishOptions = [
         'only' => [
             'dist/file.js',
diff --git a/src/Breadcrumbs.php b/src/Breadcrumbs.php
index d58270c..27ee116 100644
--- a/src/Breadcrumbs.php
+++ b/src/Breadcrumbs.php
@@ -26,7 +26,7 @@
  *
  * @link https://bulma.io/documentation/components/breadcrumb/
  */
-class Breadcrumbs extends Widget
+final class Breadcrumbs extends Widget
 {
     private bool $encodeLabels = true;
     private bool $encodeLinks = false;
diff --git a/src/Menu.php b/src/Menu.php
index e24d169..b904c67 100644
--- a/src/Menu.php
+++ b/src/Menu.php
@@ -86,7 +86,7 @@ public function activateParents(): self
     /**
      * The CSS class to be appended to the active menu item.
      *
-     * @var string
+     * @param string $value
      *
      * @return self
      */
@@ -141,7 +141,7 @@ public function withoutEncodeLabels(): self
      * The CSS class that will be assigned to the first item in the main menu or each submenu. Defaults to null,
      * meaning no such CSS class will be assigned.
      *
-     * @var string
+     * @param string $value
      *
      * @return self
      */
@@ -156,8 +156,6 @@ public function firstItemCssClass(string $value): self
      * Whether to show empty menu items. An empty menu item is one whose `url` option is not set and which has no
      * visible child menu items.
      *
-     * @var bool
-     *
      * @return self
      */
     public function showEmptyItems(): self
diff --git a/src/ModalCard.php b/src/ModalCard.php
index 740622f..ef48f66 100644
--- a/src/ModalCard.php
+++ b/src/ModalCard.php
@@ -209,8 +209,6 @@ public function toggleButtonColor(string $value): self
     /**
      * Disable toggle button.
      *
-     * @param bool $value
-     *
      * @return self
      */
     public function withoutToggleButton(): self
@@ -261,8 +259,6 @@ public function closeButtonOptions(array $value): self
     /**
      * Disable close button.
      *
-     * @param bool $value
-     *
      * @return self
      */
     public function withoutCloseButton(): self
diff --git a/src/Panel.php b/src/Panel.php
index 5a52376..490ee9c 100644
--- a/src/Panel.php
+++ b/src/Panel.php
@@ -114,7 +114,7 @@ public function headingOptions(array $value): self
     /**
      * Set progress bar color.
      *
-     * @var string $value Color class.
+     * @param string $value Color class.
      *
      * @return self
      */
diff --git a/src/ProgressBar.php b/src/ProgressBar.php
index 2da255c..cf777c3 100644
--- a/src/ProgressBar.php
+++ b/src/ProgressBar.php
@@ -76,7 +76,7 @@ public function options(array $value): self
     /**
      * Set the value of the progress.
      *
-     * @var float $value The value of the progress. Set `0` to display loading animation.
+     * @param float $value The value of the progress. Set `0` to display loading animation.
      *
      * @return self
      */
@@ -91,7 +91,7 @@ public function value(float $value): self
     /**
      * Set maximum progress value.
      *
-     * @var int $value Maximum progress value. Set `0` for no maximum.
+     * @param int $value Maximum progress value. Set `0` for no maximum.
      *
      * @return self
      */
@@ -126,7 +126,7 @@ public function size(string $value): self
     /**
      * Set progress bar color.
      *
-     * @var string $value Color class.
+     * @param string $value Color class.
      *
      * @return self
      */
@@ -151,7 +151,7 @@ private function buildOptions(): void
 
         $this->options = $this->addOptions($this->options, 'progress');
 
-        if ($this->maxValue !== 0) {
+        if ($this->maxValue > 0) {
             $this->options['max'] = $this->maxValue;
         }
 
diff --git a/src/Widget.php b/src/Widget.php
index de42952..65a39df 100644
--- a/src/Widget.php
+++ b/src/Widget.php
@@ -83,6 +83,7 @@ protected function addOptions(array $options, string $defaultClass): array
         $class = '';
 
         if (isset($options['class'])) {
+            /** @var string|string[] $class */
             $class = $options['class'];
             unset($options['class']);
 
@@ -91,7 +92,6 @@ protected function addOptions(array $options, string $defaultClass): array
             }
         }
 
-        /** @psalm-var string $class */
         if (strpos($class, $defaultClass) === false) {
             Html::addCssClass($options, $defaultClass);
         }
diff --git a/tests/BreadcrumbsTest.php b/tests/BreadcrumbsTest.php
index 5b74347..f9a3e8f 100644
--- a/tests/BreadcrumbsTest.php
+++ b/tests/BreadcrumbsTest.php
@@ -284,4 +284,19 @@ public function testBreadcrumbsWithoutHomeItem(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Breadcrumbs::widget();
+
+        $this->assertNotSame($widget, $widget->homeItem([]));
+        $this->assertNotSame($widget, $widget->withoutHomeItem());
+        $this->assertNotSame($widget, $widget->itemTemplate(''));
+        $this->assertNotSame($widget, $widget->activeItemTemplate(''));
+        $this->assertNotSame($widget, $widget->items([]));
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->itemsOptions([]));
+        $this->assertNotSame($widget, $widget->id(Breadcrumbs::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Breadcrumbs::class));
+    }
 }
diff --git a/tests/DropdownTest.php b/tests/DropdownTest.php
index 2c70391..225f740 100644
--- a/tests/DropdownTest.php
+++ b/tests/DropdownTest.php
@@ -259,4 +259,24 @@ public function testEncodeLabels(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Dropdown::widget();
+
+        $this->assertNotSame($widget, $widget->buttonLabel(''));
+        $this->assertNotSame($widget, $widget->buttonLabelOptions([]));
+        $this->assertNotSame($widget, $widget->dividerClass(''));
+        $this->assertNotSame($widget, $widget->itemClass(''));
+        $this->assertNotSame($widget, $widget->itemsClass(''));
+        $this->assertNotSame($widget, $widget->withoutEncodeLabels());
+        $this->assertNotSame($widget, $widget->withoutEncloseByContainer());
+        $this->assertNotSame($widget, $widget->items([]));
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->buttonOptions([]));
+        $this->assertNotSame($widget, $widget->itemsOptions([]));
+        $this->assertNotSame($widget, $widget->triggerOptions([]));
+        $this->assertNotSame($widget, $widget->id(Dropdown::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Dropdown::class));
+    }
 }
diff --git a/tests/MenuTest.php b/tests/MenuTest.php
index 9542118..a198229 100644
--- a/tests/MenuTest.php
+++ b/tests/MenuTest.php
@@ -873,4 +873,27 @@ public function testMenuSubMenuTemplate(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Menu::widget();
+
+        $this->assertNotSame($widget, $widget->withoutActivateItems());
+        $this->assertNotSame($widget, $widget->activateParents());
+        $this->assertNotSame($widget, $widget->activeCssClass(''));
+        $this->assertNotSame($widget, $widget->brand(''));
+        $this->assertNotSame($widget, $widget->currentPath(''));
+        $this->assertNotSame($widget, $widget->withoutEncodeLabels());
+        $this->assertNotSame($widget, $widget->firstItemCssClass(''));
+        $this->assertNotSame($widget, $widget->showEmptyItems());
+        $this->assertNotSame($widget, $widget->items([]));
+        $this->assertNotSame($widget, $widget->itemOptions([]));
+        $this->assertNotSame($widget, $widget->labelTemplate(''));
+        $this->assertNotSame($widget, $widget->lastItemCssClass(''));
+        $this->assertNotSame($widget, $widget->linkTemplate(''));
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->subMenuTemplate(''));
+        $this->assertNotSame($widget, $widget->id(Menu::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Menu::class));
+    }
 }
diff --git a/tests/MessageTest.php b/tests/MessageTest.php
index 450a837..4ef606d 100644
--- a/tests/MessageTest.php
+++ b/tests/MessageTest.php
@@ -253,4 +253,22 @@ public function testMessageWithoutHeader(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Message::widget();
+
+        $this->assertNotSame($widget, $widget->body(''));
+        $this->assertNotSame($widget, $widget->headerColor(''));
+        $this->assertNotSame($widget, $widget->headerMessage(''));
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->bodyOptions([]));
+        $this->assertNotSame($widget, $widget->closeButtonOptions([]));
+        $this->assertNotSame($widget, $widget->headerOptions([]));
+        $this->assertNotSame($widget, $widget->size(''));
+        $this->assertNotSame($widget, $widget->closeButton());
+        $this->assertNotSame($widget, $widget->withoutHeader());
+        $this->assertNotSame($widget, $widget->id(Message::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Message::class));
+    }
 }
diff --git a/tests/ModalCardTest.php b/tests/ModalCardTest.php
index 7a691fe..d010ad1 100644
--- a/tests/ModalCardTest.php
+++ b/tests/ModalCardTest.php
@@ -436,4 +436,28 @@ public function testModalCardOptions(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = ModalCard::widget();
+
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->contentOptions([]));
+        $this->assertNotSame($widget, $widget->toggleButtonLabel(''));
+        $this->assertNotSame($widget, $widget->toggleButtonOptions([]));
+        $this->assertNotSame($widget, $widget->toggleButtonSize('is-small'));
+        $this->assertNotSame($widget, $widget->toggleButtonColor('is-primary'));
+        $this->assertNotSame($widget, $widget->withoutToggleButton());
+        $this->assertNotSame($widget, $widget->closeButtonSize('is-small'));
+        $this->assertNotSame($widget, $widget->closeButtonOptions([]));
+        $this->assertNotSame($widget, $widget->withoutCloseButton());
+        $this->assertNotSame($widget, $widget->headerOptions([]));
+        $this->assertNotSame($widget, $widget->bodyOptions([]));
+        $this->assertNotSame($widget, $widget->footerOptions([]));
+        $this->assertNotSame($widget, $widget->footer(''));
+        $this->assertNotSame($widget, $widget->titleOptions([]));
+        $this->assertNotSame($widget, $widget->title(''));
+        $this->assertNotSame($widget, $widget->id(ModalCard::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(ModalCard::class));
+    }
 }
diff --git a/tests/ModalTest.php b/tests/ModalTest.php
index 2ec93ac..fff59cd 100644
--- a/tests/ModalTest.php
+++ b/tests/ModalTest.php
@@ -230,4 +230,22 @@ public function testToggleButtonOptions(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Modal::widget();
+
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->toggleButtonLabel(''));
+        $this->assertNotSame($widget, $widget->toggleButtonOptions([]));
+        $this->assertNotSame($widget, $widget->toggleButtonSize('is-small'));
+        $this->assertNotSame($widget, $widget->toggleButtonColor('is-primary'));
+        $this->assertNotSame($widget, $widget->withoutToggleButton());
+        $this->assertNotSame($widget, $widget->closeButtonSize('is-small'));
+        $this->assertNotSame($widget, $widget->closeButtonOptions([]));
+        $this->assertNotSame($widget, $widget->withoutCloseButton());
+        $this->assertNotSame($widget, $widget->contentOptions([]));
+        $this->assertNotSame($widget, $widget->id(Modal::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Modal::class));
+    }
 }
diff --git a/tests/NavBarTest.php b/tests/NavBarTest.php
index ce1ec96..eccbc29 100644
--- a/tests/NavBarTest.php
+++ b/tests/NavBarTest.php
@@ -418,4 +418,24 @@ public function testNavBarItemsOptionsClassArray(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = NavBar::widget();
+
+        $this->assertNotSame($widget, $widget->brand(''));
+        $this->assertNotSame($widget, $widget->brandLabel(''));
+        $this->assertNotSame($widget, $widget->brandImage(''));
+        $this->assertNotSame($widget, $widget->brandUrl(''));
+        $this->assertNotSame($widget, $widget->toggleIcon(''));
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->brandOptions([]));
+        $this->assertNotSame($widget, $widget->brandLabelOptions([]));
+        $this->assertNotSame($widget, $widget->brandImageOptions([]));
+        $this->assertNotSame($widget, $widget->itemsOptions([]));
+        $this->assertNotSame($widget, $widget->menuOptions([]));
+        $this->assertNotSame($widget, $widget->toggleOptions([]));
+        $this->assertNotSame($widget, $widget->id(NavBar::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(NavBar::class));
+    }
 }
diff --git a/tests/NavTest.php b/tests/NavTest.php
index 6ab9987..72d62d4 100644
--- a/tests/NavTest.php
+++ b/tests/NavTest.php
@@ -516,4 +516,17 @@ public function testNavIcon(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Nav::widget();
+
+        $this->assertNotSame($widget, $widget->withoutActivateItems());
+        $this->assertNotSame($widget, $widget->activateParents());
+        $this->assertNotSame($widget, $widget->currentPath(''));
+        $this->assertNotSame($widget, $widget->withoutEncodeLabels());
+        $this->assertNotSame($widget, $widget->items([]));
+        $this->assertNotSame($widget, $widget->id(Nav::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Nav::class));
+    }
 }
diff --git a/tests/PanelTest.php b/tests/PanelTest.php
index 97157e3..60a0446 100644
--- a/tests/PanelTest.php
+++ b/tests/PanelTest.php
@@ -398,4 +398,19 @@ public function testItemMissigLabel(): void
         $this->expectException(InvalidArgumentException::class);
         Panel::widget()->tabs([['label' => 'All', 'items' => [['icon' => 'fas fa-book']]]])->render();
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Panel::widget();
+
+        $this->assertNotSame($widget, $widget->template(''));
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->heading(''));
+        $this->assertNotSame($widget, $widget->headingOptions([]));
+        $this->assertNotSame($widget, $widget->color('is-primary'));
+        $this->assertNotSame($widget, $widget->tabs([]));
+        $this->assertNotSame($widget, $widget->tabsOptions([]));
+        $this->assertNotSame($widget, $widget->id(Panel::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Panel::class));
+    }
 }
diff --git a/tests/ProgressBarTest.php b/tests/ProgressBarTest.php
index fe009c7..2df39f2 100644
--- a/tests/ProgressBarTest.php
+++ b/tests/ProgressBarTest.php
@@ -78,6 +78,17 @@ public function testProgressBarPercent(): void
         $this->assertEqualsWithoutLE($expected, $html);
     }
 
+    public function testProgressBarWithZeroValues(): void
+    {
+        ProgressBar::counter(0);
+
+        $html = ProgressBar::widget()->value(0)->maxValue(0)->render();
+        $expected = <<<'HTML'
+        <progress id="w1-progressbar" class="progress"></progress>
+        HTML;
+        $this->assertEqualsWithoutLE($expected, $html);
+    }
+
     public function testExceptionSize(): void
     {
         $this->expectException(InvalidArgumentException::class);
@@ -89,4 +100,17 @@ public function testExceptionColor(): void
         $this->expectException(InvalidArgumentException::class);
         ProgressBar::widget()->color('is-non-existent')->render();
     }
+
+    public function testImmutability(): void
+    {
+        $widget = ProgressBar::widget();
+
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->value(1.0));
+        $this->assertNotSame($widget, $widget->maxValue(100));
+        $this->assertNotSame($widget, $widget->size('is-small'));
+        $this->assertNotSame($widget, $widget->color('is-primary'));
+        $this->assertNotSame($widget, $widget->id(ProgressBar::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(ProgressBar::class));
+    }
 }
diff --git a/tests/TabsTest.php b/tests/TabsTest.php
index 5612bd2..a93b297 100644
--- a/tests/TabsTest.php
+++ b/tests/TabsTest.php
@@ -331,4 +331,21 @@ public function testTabsContentOptions(): void
         HTML;
         $this->assertEqualsWithoutLE($expected, $html);
     }
+
+    public function testImmutability(): void
+    {
+        $widget = Tabs::widget();
+
+        $this->assertNotSame($widget, $widget->options([]));
+        $this->assertNotSame($widget, $widget->items([]));
+        $this->assertNotSame($widget, $widget->withoutActivateItems());
+        $this->assertNotSame($widget, $widget->withoutEncodeLabels());
+        $this->assertNotSame($widget, $widget->currentPath(''));
+        $this->assertNotSame($widget, $widget->size('is-small'));
+        $this->assertNotSame($widget, $widget->alignment('is-centered'));
+        $this->assertNotSame($widget, $widget->style('is-boxed'));
+        $this->assertNotSame($widget, $widget->tabsContentOptions([]));
+        $this->assertNotSame($widget, $widget->id(Tabs::class));
+        $this->assertNotSame($widget, $widget->autoIdPrefix(Tabs::class));
+    }
 }
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 6070acd..d12c414 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -6,7 +6,7 @@
 
 use PHPUnit\Framework\TestCase as BaseTestCase;
 use Psr\Container\ContainerInterface;
-use Yiisoft\Di\Container;
+use Yiisoft\Test\Support\Container\SimpleContainer;
 use Yiisoft\Widget\WidgetFactory;
 
 abstract class TestCase extends BaseTestCase
@@ -17,7 +17,7 @@ protected function setUp(): void
     {
         parent::setUp();
 
-        $this->container = new Container();
+        $this->container = new SimpleContainer();
         WidgetFactory::initialize($this->container, []);
     }