diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..f299a02
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,4 @@
+/node_modules
+/output_*
+/var
+/vendor
diff --git a/app/SculpinKernel.php b/app/SculpinKernel.php
index 4be6cc7..a009938 100644
--- a/app/SculpinKernel.php
+++ b/app/SculpinKernel.php
@@ -12,8 +12,7 @@ class SculpinKernel extends AbstractKernel
         return [
             TwigExtensionBundle::class,
             SiteMapBundle::class,
-            // Выключен - некорректно форматирует блоки <code>
-            // HtmlPrettierBundle::class,
+             HtmlPrettierBundle::class,
         ];
     }
 }
diff --git a/bundle/HtmlPrettierBundle/HtmlPrettier.php b/bundle/HtmlPrettierBundle/HtmlPrettier.php
index 8b48775..315360b 100644
--- a/bundle/HtmlPrettierBundle/HtmlPrettier.php
+++ b/bundle/HtmlPrettierBundle/HtmlPrettier.php
@@ -2,10 +2,12 @@
 
 namespace Homepage\HtmlPrettierBundle;
 
-use Gajus\Dindent\Indenter;
+use Generator;
 use Sculpin\Core\Event\SourceSetEvent;
 use Sculpin\Core\Sculpin;
+use Sculpin\Core\Source\SourceInterface;
 use Sculpin\Core\Source\SourceSet;
+use function strlen;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 class HtmlPrettier implements EventSubscriberInterface
@@ -22,23 +24,26 @@ class HtmlPrettier implements EventSubscriberInterface
 
     public function formatHtml(SourceSetEvent $event): void
     {
-        $indenter = new Indenter([
-            'indentation_character' => '  ',
-        ]);
+        $config = [
+            'indent' => true,
+            'wrap' => 120,
+        ];
 
         $sources = $this->filterSource($event->sourceSet());
 
-        /** @var \Sculpin\Core\Source\SourceInterface $source */
+        /** @var SourceInterface $source */
         foreach ($sources as $source) {
             $html = $source->formattedContent();
-            $formatted = $indenter->indent($html);
-            $source->setFormattedContent($formatted);
+            $tidy = new \tidy();
+            $tidy->parseString($html, $config, 'utf8');
+            $tidy->cleanRepair();
+            $source->setFormattedContent((string) $tidy);
         }
     }
 
-    private function filterSource(SourceSet $sourceSet): \Generator
+    private function filterSource(SourceSet $sourceSet): Generator
     {
-        /** @var \Sculpin\Core\Source\SourceInterface $source */
+        /** @var SourceInterface $source */
         foreach ($sourceSet->allSources() as $source) {
             $filename = $source->filename();
 
@@ -55,7 +60,7 @@ class HtmlPrettier implements EventSubscriberInterface
 
     private function endsWith($haystack, $needle): bool
     {
-        $length = \strlen($needle);
+        $length = strlen($needle);
 
         return $length === 0 || (substr($haystack, -$length) === $needle);
     }
diff --git a/composer.json b/composer.json
index 54bc01f..b104f9a 100644
--- a/composer.json
+++ b/composer.json
@@ -11,9 +11,9 @@
     "require": {
     },
     "require-dev": {
-        "gajus/dindent": "^2.0",
         "friendsofphp/php-cs-fixer": "^2.15",
-        "sculpin/sculpin": "^3.0"
+        "sculpin/sculpin": "^3.0",
+        "ext-tidy": "*"
     },
     "autoload": {
         "psr-4": {
diff --git a/composer.lock b/composer.lock
index 5b6c3b1..616916c 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "c6dbaa9f2424b9e4e8e3e4fd3d854e0d",
+    "content-hash": "337638bb471e99cc8a19f050a703792d",
     "packages": [],
     "packages-dev": [
         {
@@ -769,51 +769,6 @@
             "description": "A tool to automatically fix PHP code style",
             "time": "2019-06-01T10:32:12+00:00"
         },
-        {
-            "name": "gajus/dindent",
-            "version": "2.0.2",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/gajus/dindent.git",
-                "reference": "d81c3a6f78fbe1ab26f5e753098bbbef6b6a9f3c"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/gajus/dindent/zipball/d81c3a6f78fbe1ab26f5e753098bbbef6b6a9f3c",
-                "reference": "d81c3a6f78fbe1ab26f5e753098bbbef6b6a9f3c",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3"
-            },
-            "require-dev": {
-                "satooshi/php-coveralls": "dev-master"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "Gajus\\Dindent\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Gajus Kuizinas",
-                    "email": "gk@anuary.com"
-                }
-            ],
-            "description": "HTML indentation library for development and testing.",
-            "homepage": "https://github.com/gajus/dindent",
-            "keywords": [
-                "format",
-                "html",
-                "indent"
-            ],
-            "time": "2014-10-08T10:03:04+00:00"
-        },
         {
             "name": "michelf/php-markdown",
             "version": "1.8.0",
@@ -3411,5 +3366,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": {
+        "ext-tidy": "*"
+    }
 }
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 037e485..5e243d9 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -2,6 +2,15 @@ ARG PHP_BASE_IMAGE
 
 FROM ${PHP_BASE_IMAGE}
 
+RUN apt-get update && apt-get install -y \
+    libtidy-dev \
+    curl \
+    git \
+    gzip
+
+RUN docker-php-ext-install tidy \
+    && docker-php-ext-enable tidy
+
 # Project folder
 RUN mkdir -p /srv/app