diff --git a/app/SculpinKernel.php b/app/SculpinKernel.php
index 4755b50..f4dcde7 100644
--- a/app/SculpinKernel.php
+++ b/app/SculpinKernel.php
@@ -2,6 +2,7 @@
 
 use Homepage\HtmlPrettierBundle\HtmlPrettierBundle;
 use Homepage\SiteMapBundle\SiteMapBundle;
+use Homepage\TwigExtensionBundle\TwigExtensionBundle;
 use Sculpin\Bundle\SculpinBundle\HttpKernel\AbstractKernel;
 
 class SculpinKernel extends AbstractKernel
@@ -9,6 +10,7 @@ class SculpinKernel extends AbstractKernel
     protected function getAdditionalSculpinBundles(): array
     {
         return [
+            TwigExtensionBundle::class,
             SiteMapBundle::class,
             HtmlPrettierBundle::class,
         ];
diff --git a/bundle/TwigExtensionBundle/DependencyInjection/TwigExtensionExtension.php b/bundle/TwigExtensionBundle/DependencyInjection/TwigExtensionExtension.php
new file mode 100644
index 0000000..3c7f17b
--- /dev/null
+++ b/bundle/TwigExtensionBundle/DependencyInjection/TwigExtensionExtension.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Homepage\TwigExtensionBundle\DependencyInjection;
+
+use Symfony\Component\Config\FileLocator;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Loader;
+use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+
+class TwigExtensionExtension extends Extension
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function load(array $configs, ContainerBuilder $container)
+    {
+        $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader->load('services.yml');
+    }
+}
diff --git a/bundle/TwigExtensionBundle/Resources/config/services.yml b/bundle/TwigExtensionBundle/Resources/config/services.yml
new file mode 100644
index 0000000..f68ed62
--- /dev/null
+++ b/bundle/TwigExtensionBundle/Resources/config/services.yml
@@ -0,0 +1,8 @@
+services:
+  homepage.twig_extension:
+    class: \Homepage\TwigExtensionBundle\TwigExtension
+    arguments:
+      - '%sculpin.output_dir%'
+    public: yes
+    tags:
+      - { name: twig.extension }
diff --git a/bundle/TwigExtensionBundle/TwigExtension.php b/bundle/TwigExtensionBundle/TwigExtension.php
new file mode 100644
index 0000000..2739aac
--- /dev/null
+++ b/bundle/TwigExtensionBundle/TwigExtension.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Homepage\TwigExtensionBundle;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+class TwigExtension extends AbstractExtension
+{
+    private $outputDir;
+
+    public function __construct(string $outputDir)
+    {
+        $this->outputDir = $outputDir;
+    }
+
+    public function getFunctions(): array
+    {
+        return [
+            new TwigFunction('hashed_asset', [$this, 'createHashedFileLink']),
+        ];
+    }
+
+    public function createHashedFileLink(string $path): string
+    {
+        $fullPath = $this->join($this->outputDir, $path);
+        $realPath = realpath($fullPath);
+
+        if (!file_exists($realPath)) {
+            return sprintf('%s?v=%s', $path, time());
+        }
+
+        $hash = md5_file($realPath);
+
+        return sprintf('%s?v=%s', $path, $hash);
+    }
+
+    private function join(string $base, string $path): string
+    {
+        return $path ? rtrim($base, '/').'/'.ltrim($path, '/') : $base;
+    }
+}
diff --git a/bundle/TwigExtensionBundle/TwigExtensionBundle.php b/bundle/TwigExtensionBundle/TwigExtensionBundle.php
new file mode 100644
index 0000000..cd4152c
--- /dev/null
+++ b/bundle/TwigExtensionBundle/TwigExtensionBundle.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Homepage\TwigExtensionBundle;
+
+use Symfony\Component\HttpKernel\Bundle\Bundle;
+
+class TwigExtensionBundle extends Bundle
+{
+}
diff --git a/source/404.html.twig b/source/404.html.twig
index 28cae28..72667e6 100644
--- a/source/404.html.twig
+++ b/source/404.html.twig
@@ -3,7 +3,7 @@ layout: default
 description: Личный сайт Антона Вахрушева
 ---
 {% block css %}
-  <link rel="stylesheet" href="/static/index.css?v={{ date().timestamp }}">
+  <link rel="stylesheet" href="{{ hashed_asset('/static/index.css') }}">
 {% endblock %}
 
 {% block content %}
diff --git a/source/_layouts/album.html.twig b/source/_layouts/album.html.twig
index ba7f8f6..d044718 100644
--- a/source/_layouts/album.html.twig
+++ b/source/_layouts/album.html.twig
@@ -1,7 +1,7 @@
 {% extends 'internal.html.twig' %}
 
 {% block css %}
-  <link rel="stylesheet" href="/static/layout_album.css?v={{ date().timestamp }}">
+  <link rel="stylesheet" href="{{ hashed_asset('/static/layout_album.css') }}">
 {% endblock %}
 
 {% block main %}
diff --git a/source/_layouts/default.html.twig b/source/_layouts/default.html.twig
index e0d1374..d863786 100644
--- a/source/_layouts/default.html.twig
+++ b/source/_layouts/default.html.twig
@@ -2,7 +2,7 @@
 <html>
 <head>
   {% include 'head.twig' %}
-  <link rel="stylesheet" href="/static/layout_default.css?v={{ date().timestamp }}">
+  <link rel="stylesheet" href="{{ hashed_asset('/static/layout_default.css') }}">
   {% block css %}{% endblock %}
 </head>
 <body>
@@ -15,7 +15,7 @@
 
   {% include 'counters.twig' %}
 
-  <script async src="/static/layout_default.js?v={{ date().timestamp }}"></script>
+  <script async src="{{ hashed_asset('/static/layout_default.js') }}"></script>
   {% block js %}{% endblock %}
 
   {% include 'font-awesome.twig' %}
diff --git a/source/_layouts/internal.html.twig b/source/_layouts/internal.html.twig
index a435eb0..de0438d 100644
--- a/source/_layouts/internal.html.twig
+++ b/source/_layouts/internal.html.twig
@@ -2,7 +2,7 @@
 <html>
 <head>
   {% include 'head.twig' %}
-  <link rel="stylesheet" href="/static/layout_internal.css?v={{ date().timestamp }}">
+  <link rel="stylesheet" href="{{ hashed_asset('/static/layout_internal.css') }}">
   {% block css %}{% endblock %}
 </head>
 <body>
@@ -23,7 +23,7 @@
 
   {% include 'counters.twig' %}
 
-  <script async src="/static/layout_internal.js?v={{ date().timestamp }}"></script>
+  <script async src="{{ hashed_asset('/static/layout_internal.js') }}"></script>
   {% block js %}{% endblock %}
 
   {% include 'font-awesome.twig' %}
diff --git a/source/about/me.html.twig b/source/about/me.html.twig
index f9c3c5f..880b0d1 100644
--- a/source/about/me.html.twig
+++ b/source/about/me.html.twig
@@ -5,11 +5,11 @@ description: Несколько фактов об авторе
 ---
 
 {% block js %}
-  <script async src="/static/about_me.js?v={{ date().timestamp }}"></script>
+  <script async src="{{ hashed_asset('/static/about_me.js') }}"></script>
 {% endblock %}
 
 {% block css %}
-  <link rel="stylesheet" href="/static/about_me.css?v={{ date().timestamp }}">
+  <link rel="stylesheet" href="{{ hashed_asset('/static/about_me.css') }}">
 {% endblock %}
 
 {% block content %}
diff --git a/source/index.html.twig b/source/index.html.twig
index 68ceb92..1e08479 100644
--- a/source/index.html.twig
+++ b/source/index.html.twig
@@ -3,7 +3,7 @@ layout: default
 description: Личный сайт Антона Вахрушева
 ---
 {% block css %}
-  <link rel="stylesheet" href="/static/index.css?v={{ date().timestamp }}">
+  <link rel="stylesheet" href="{{ hashed_asset('/static/index.css') }}">
 {% endblock %}
 
 {% block content %}
diff --git a/source/projects/predictor/index.html.twig b/source/projects/predictor/index.html.twig
index c0c8030..b891d75 100644
--- a/source/projects/predictor/index.html.twig
+++ b/source/projects/predictor/index.html.twig
@@ -5,11 +5,11 @@ description: Демо-версия электронной гадалки Шен
 ---
 
 {% block js %}
-  <script async src="/static/predictor.js?v={{ date().timestamp }}"></script>
+  <script async src="{{ hashed_asset('/static/predictor.js') }}"></script>
 {% endblock %}
 
 {% block css %}
-  <link rel="stylesheet" href="/static/predictor.css?v={{ date().timestamp }}">
+  <link rel="stylesheet" href="{{ hashed_asset('/static/predictor.css') }}">
 {% endblock %}
 
 {% block content %}