diff --git a/composer.json b/composer.json
index 7079bf6..afb39b7 100644
--- a/composer.json
+++ b/composer.json
@@ -4,15 +4,14 @@
 	"description": "php parser for bb code",
     "license": "MIT",
 	"require": {
-        "php": ">=7.0",
-        "tekstove/url-video-parser": "^1.0.1"
+        "php": ">=7.0"
 	},
     "require-dev": {
         "phpUnit/phpUnit": "5.6.*"
     },
 	"autoload": {
 		"psr-0": {
-			"Potaka": "src/"
+			"Knockout": "src/"
 		}
 	}
 }
diff --git a/src/Potaka/BbCode/BbCode.php b/src/Knockout/BbCode/BbCode.php
similarity index 93%
rename from src/Potaka/BbCode/BbCode.php
rename to src/Knockout/BbCode/BbCode.php
index 49f34bb..18d91e8 100644
--- a/src/Potaka/BbCode/BbCode.php
+++ b/src/Knockout/BbCode/BbCode.php
@@ -1,14 +1,14 @@
 <?php
 
-namespace Potaka\BbCode;
+namespace Knockout\BbCode;
 
-use Potaka\BbCode\Tag\TagInterface;
+use Knockout\BbCode\Tag\TagInterface;
 
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
-use Potaka\BbCode\TagBag\TagBag;
+use Knockout\BbCode\Tokenizer\Tag as TokenTag;
+use Knockout\BbCode\TagBag\TagBag;
 
-use Potaka\BbCode\Tag\TextTag;
-use Potaka\BbCode\Tag\UnknownSimpleType;
+use Knockout\BbCode\Tag\TextTag;
+use Knockout\BbCode\Tag\UnknownSimpleType;
 
 /**
  * Format tokens to html
diff --git a/src/Potaka/BbCode/Exception.php b/src/Knockout/BbCode/Exception.php
similarity index 82%
rename from src/Potaka/BbCode/Exception.php
rename to src/Knockout/BbCode/Exception.php
index a843b7a..d4fc6f1 100644
--- a/src/Potaka/BbCode/Exception.php
+++ b/src/Knockout/BbCode/Exception.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Potaka\BbCode;
+namespace Knockout\BbCode;
 
 /**
  * @author po_taka <angel.koilov@gmail.com>
diff --git a/src/Potaka/BbCode/Factory.php b/src/Knockout/BbCode/Factory.php
similarity index 87%
rename from src/Potaka/BbCode/Factory.php
rename to src/Knockout/BbCode/Factory.php
index 1ae04fb..0de2b32 100644
--- a/src/Potaka/BbCode/Factory.php
+++ b/src/Knockout/BbCode/Factory.php
@@ -1,15 +1,15 @@
 <?php
 
-namespace Potaka\BbCode;
+namespace Knockout\BbCode;
 
-use Potaka\BbCode\Tag\Bold;
-use Potaka\BbCode\Tag\Underline;
-use Potaka\BbCode\Tag\Italic;
+use Knockout\BbCode\Tag\Bold;
+use Knockout\BbCode\Tag\Underline;
+use Knockout\BbCode\Tag\Italic;
 
-use Potaka\BbCode\Tag\Link;
-use Potaka\BbCode\Tag\ImgTag;
+use Knockout\BbCode\Tag\Link;
+use Knockout\BbCode\Tag\ImgTag;
 
-use Potaka\BbCode\Tag\YoutubeTag;
+use Knockout\BbCode\Tag\YoutubeTag;
 
 /**
  * Create different BbCode configurations
diff --git a/src/Potaka/BbCode/Tag/Bold.php b/src/Knockout/BbCode/Tag/Bold.php
similarity index 91%
rename from src/Potaka/BbCode/Tag/Bold.php
rename to src/Knockout/BbCode/Tag/Bold.php
index 3fedb4b..58fc76e 100644
--- a/src/Potaka/BbCode/Tag/Bold.php
+++ b/src/Knockout/BbCode/Tag/Bold.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
 /**
  * Description of bold
diff --git a/src/Potaka/BbCode/Tag/Exception.php b/src/Knockout/BbCode/Tag/Exception.php
similarity index 53%
rename from src/Potaka/BbCode/Tag/Exception.php
rename to src/Knockout/BbCode/Tag/Exception.php
index e042a8d..f7efeb2 100644
--- a/src/Potaka/BbCode/Tag/Exception.php
+++ b/src/Knockout/BbCode/Tag/Exception.php
@@ -1,13 +1,13 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
 /**
  * Description of Exception
  *
  * @author potaka
  */
-class Exception extends \Potaka\BbCode\Exception
+class Exception extends \Knockout\BbCode\Exception
 {
     //put your code here
 }
diff --git a/src/Potaka/BbCode/Tag/ImgTag.php b/src/Knockout/BbCode/Tag/ImgTag.php
similarity index 90%
rename from src/Potaka/BbCode/Tag/ImgTag.php
rename to src/Knockout/BbCode/Tag/ImgTag.php
index 4066302..8813c7d 100644
--- a/src/Potaka/BbCode/Tag/ImgTag.php
+++ b/src/Knockout/BbCode/Tag/ImgTag.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
+use Knockout\BbCode\Tokenizer\Tag as TokenTag;
 
 /**
  * ImgTag
diff --git a/src/Potaka/BbCode/Tag/Italic.php b/src/Knockout/BbCode/Tag/Italic.php
similarity index 91%
rename from src/Potaka/BbCode/Tag/Italic.php
rename to src/Knockout/BbCode/Tag/Italic.php
index b3b6b1a..17db533 100644
--- a/src/Potaka/BbCode/Tag/Italic.php
+++ b/src/Knockout/BbCode/Tag/Italic.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
 /**
  * Description of Italic
diff --git a/src/Potaka/BbCode/Tag/Link.php b/src/Knockout/BbCode/Tag/Link.php
similarity index 90%
rename from src/Potaka/BbCode/Tag/Link.php
rename to src/Knockout/BbCode/Tag/Link.php
index 19540a0..ec00ea7 100644
--- a/src/Potaka/BbCode/Tag/Link.php
+++ b/src/Knockout/BbCode/Tag/Link.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
+use Knockout\BbCode\Tokenizer\Tag as TokenTag;
 
 /**
  * @author po_taka <angel.koilov@gmail.com>
diff --git a/src/Potaka/BbCode/Tag/SimpleTag.php b/src/Knockout/BbCode/Tag/SimpleTag.php
similarity index 90%
rename from src/Potaka/BbCode/Tag/SimpleTag.php
rename to src/Knockout/BbCode/Tag/SimpleTag.php
index 4d69a14..0f3f0d7 100644
--- a/src/Potaka/BbCode/Tag/SimpleTag.php
+++ b/src/Knockout/BbCode/Tag/SimpleTag.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
+use Knockout\BbCode\Tokenizer\Tag as TokenTag;
 
 /**
  * @author po_taka <angel.koilov@gmail.com>
diff --git a/src/Potaka/BbCode/Tag/TagInterface.php b/src/Knockout/BbCode/Tag/TagInterface.php
similarity index 76%
rename from src/Potaka/BbCode/Tag/TagInterface.php
rename to src/Knockout/BbCode/Tag/TagInterface.php
index 15fd3fe..3741c64 100644
--- a/src/Potaka/BbCode/Tag/TagInterface.php
+++ b/src/Knockout/BbCode/Tag/TagInterface.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
+use Knockout\BbCode\Tokenizer\Tag as TokenTag;
 
 /**
  *
diff --git a/src/Potaka/BbCode/Tag/TextTag.php b/src/Knockout/BbCode/Tag/TextTag.php
similarity index 86%
rename from src/Potaka/BbCode/Tag/TextTag.php
rename to src/Knockout/BbCode/Tag/TextTag.php
index 2b0bb26..380cd82 100644
--- a/src/Potaka/BbCode/Tag/TextTag.php
+++ b/src/Knockout/BbCode/Tag/TextTag.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
+use Knockout\BbCode\Tokenizer\Tag as TokenTag;
 
 /**
  * Description of TextTag
diff --git a/src/Potaka/BbCode/Tag/Underline.php b/src/Knockout/BbCode/Tag/Underline.php
similarity index 90%
rename from src/Potaka/BbCode/Tag/Underline.php
rename to src/Knockout/BbCode/Tag/Underline.php
index 4ffb394..c6493e4 100644
--- a/src/Potaka/BbCode/Tag/Underline.php
+++ b/src/Knockout/BbCode/Tag/Underline.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
 /**
  * @author po_taka
diff --git a/src/Potaka/BbCode/Tag/UnknownSimpleType.php b/src/Knockout/BbCode/Tag/UnknownSimpleType.php
similarity index 90%
rename from src/Potaka/BbCode/Tag/UnknownSimpleType.php
rename to src/Knockout/BbCode/Tag/UnknownSimpleType.php
index e7c7895..b6c6c11 100644
--- a/src/Potaka/BbCode/Tag/UnknownSimpleType.php
+++ b/src/Knockout/BbCode/Tag/UnknownSimpleType.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Potaka\BbCode\Tag;
+namespace Knockout\BbCode\Tag;
 
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
+use Knockout\BbCode\Tokenizer\Tag as TokenTag;
 
 /**
  * Description of UnknownSimpleType
diff --git a/src/Potaka/BbCode/TagBag/TagBag.php b/src/Knockout/BbCode/TagBag/TagBag.php
similarity index 93%
rename from src/Potaka/BbCode/TagBag/TagBag.php
rename to src/Knockout/BbCode/TagBag/TagBag.php
index c4cd777..b32871f 100644
--- a/src/Potaka/BbCode/TagBag/TagBag.php
+++ b/src/Knockout/BbCode/TagBag/TagBag.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Potaka\BbCode\TagBag;
+namespace Knockout\BbCode\TagBag;
 
-use Potaka\BbCode\Tag\TagInterface;
+use Knockout\BbCode\Tag\TagInterface;
 
 /**
  * Container for Tags
diff --git a/src/Potaka/BbCode/Tokenizer/Tag.php b/src/Knockout/BbCode/Tokenizer/Tag.php
similarity index 98%
rename from src/Potaka/BbCode/Tokenizer/Tag.php
rename to src/Knockout/BbCode/Tokenizer/Tag.php
index 861ae87..fe58d52 100644
--- a/src/Potaka/BbCode/Tokenizer/Tag.php
+++ b/src/Knockout/BbCode/Tokenizer/Tag.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Potaka\BbCode\Tokenizer;
+namespace Knockout\BbCode\Tokenizer;
 
 /**
  * @author po_taka <angel.koilov@gmail.com>
diff --git a/src/Potaka/BbCode/Tokenizer/Tokenizer.php b/src/Knockout/BbCode/Tokenizer/Tokenizer.php
similarity index 99%
rename from src/Potaka/BbCode/Tokenizer/Tokenizer.php
rename to src/Knockout/BbCode/Tokenizer/Tokenizer.php
index c85c164..1df9fad 100644
--- a/src/Potaka/BbCode/Tokenizer/Tokenizer.php
+++ b/src/Knockout/BbCode/Tokenizer/Tokenizer.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Potaka\BbCode\Tokenizer;
+namespace Knockout\BbCode\Tokenizer;
 
 /**
  * Transform text into tokens for bbcode
diff --git a/src/Potaka/BbCode/Tag/YoutubeTag.php b/src/Potaka/BbCode/Tag/YoutubeTag.php
deleted file mode 100644
index 93799bd..0000000
--- a/src/Potaka/BbCode/Tag/YoutubeTag.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-
-namespace Potaka\BbCode\Tag;
-
-use Potaka\BbCode\Tokenizer\Tag as TokenTag;
-use Tekstove\UrlVideoParser\Youtube\YoutubeParser;
-use Tekstove\UrlVideoParser\Youtube\YoutubeException;
-
-/**
- * Tag for youtube videos
- *
- * @author po_taka <angel.koilov@gmail.com>
- */
-class YoutubeTag implements TagInterface
-{
-    public function format(TokenTag $tokenTag): string
-    {
-        $link = $tokenTag->getText();
-
-        try {
-            $parser = new YoutubeParser();
-            $videoId = $parser->getId($link);
-        } catch (YoutubeException $e) {
-            $unknownTag = new UnknownSimpleType();
-            return $unknownTag->format($tokenTag);
-        }
-
-        return '<iframe src="https://www.youtube.com/embed/' . $videoId . '" frameborder="0" allowfullscreen></iframe>';
-    }
-
-    public function getName(): string
-    {
-        return 'youtube';
-    }
-
-    public function getOriginalText(TokenTag $tokenTag): string
-    {
-        return "[{$this->getName()}]{$tokenTag->getText()}[/{$this->getName()}";
-    }
-}