diff --git a/mjml/core/api.py b/mjml/core/api.py
index a8e65ab..41182f9 100644
--- a/mjml/core/api.py
+++ b/mjml/core/api.py
@@ -1,5 +1,7 @@
 
-from ..lib import AttrDict, merge_dicts
+from dotmap import DotMap
+
+from ..lib import merge_dicts
 from .registry import components
 
 
@@ -30,7 +32,7 @@ def __init__(self, *, attributes=None, children=(), content='', context=None,
         self.context = context
         self.tagName = tagName
 
-        self.props = AttrDict(merge_dicts(props, {'children': children, 'content': content}))
+        self.props = DotMap(merge_dicts(props, {'children': children, 'content': content}))
 
         # upstream also checks "self.allowed_attrs"
         self.attrs = merge_dicts(
diff --git a/mjml/elements/_base.py b/mjml/elements/_base.py
index e636dd0..c00aac7 100644
--- a/mjml/elements/_base.py
+++ b/mjml/elements/_base.py
@@ -1,9 +1,11 @@
 
 
+from dotmap import DotMap
+
 from ..core import Component, initComponent
 from ..core.registry import components
 from ..helpers import *
-from ..lib import AttrDict, merge_dicts
+from ..lib import merge_dicts
 
 
 __all__ = [
@@ -39,7 +41,7 @@ def getBoxWidths(self):
         paddings = get_padding('right') + get_padding('left')
         borders = self.getShorthandBorderValue('right') + self.getShorthandBorderValue('left')
 
-        return AttrDict({
+        return DotMap({
             'totalWidth': parsedWidth,
             'borders'   : borders,
             'paddings'  : paddings,
diff --git a/mjml/elements/mj_section.py b/mjml/elements/mj_section.py
index 7212e65..03473d8 100644
--- a/mjml/elements/mj_section.py
+++ b/mjml/elements/mj_section.py
@@ -3,8 +3,10 @@
 from collections import namedtuple
 from decimal import Decimal
 
+from dotmap import DotMap
+
 from ..helpers import parse_percentage, strip_unit, suffixCssClasses
-from ..lib import AttrDict, merge_dicts
+from ..lib import merge_dicts
 from ._base import BodyComponent
 
 
@@ -188,7 +190,7 @@ def renderSimple(self):
 
     def getBackgroundPosition(self):
         pos = self.parseBackgroundPosition()
-        return AttrDict({
+        return DotMap({
             'posX': self.getAttribute('background-position-x') or pos.x,
             'posY': self.getAttribute('background-position-y') or pos.y,
         })
diff --git a/mjml/lib/__init__.py b/mjml/lib/__init__.py
index aad7725..209aa4c 100644
--- a/mjml/lib/__init__.py
+++ b/mjml/lib/__init__.py
@@ -1,3 +1,2 @@
 
-from .attribute_dict import *
 from .dict_merger import *
diff --git a/mjml/lib/attribute_dict.py b/mjml/lib/attribute_dict.py
deleted file mode 100644
index f15d96b..0000000
--- a/mjml/lib/attribute_dict.py
+++ /dev/null
@@ -1,35 +0,0 @@
-# -*- coding: UTF-8 -*-
-
-# License: Public Domain
-# Authors: Felix Schwarz <felix.schwarz@oss.schwarz.eu>
-#
-# Version 1.2
-#
-# 1.2 (2018-02-16)
-#   - split tests into separate file
-#   - add ".copy()" method
-#
-# 1.1 (08.09.2015)
-#   - set items via attributes
-#
-# 1.0 (06.02.2010)
-#   - initial release
-
-
-__all__ = ['AttrDict']
-
-class AttrDict(dict):
-    def copy(self):
-        return AttrDict(self)
-
-    def __getattr__(self, name):
-        if name not in self:
-            class_name = self.__class__.__name__
-            raise AttributeError("'%s' object has no attribute '%s'" % (class_name, name))
-        return self[name]
-
-    def __setattr__(self, name, value):
-        if name not in self:
-            class_name = self.__class__.__name__
-            raise AttributeError("'%s' object has no attribute '%s'" % (class_name, name))
-        self[name] = value
diff --git a/mjml/mjml2html.py b/mjml/mjml2html.py
index 437b75e..8c542b6 100644
--- a/mjml/mjml2html.py
+++ b/mjml/mjml2html.py
@@ -3,11 +3,12 @@
 from typing import List, Optional
 
 from bs4 import BeautifulSoup
+from dotmap import DotMap
 
 from .core import initComponent
 from .core.registry import register_components, register_core_components
 from .helpers import json_to_xml, mergeOutlookConditionnals, omit, skeleton_str as default_skeleton
-from .lib import AttrDict, merge_dicts
+from .lib import merge_dicts
 
 
 def ignore_empty(values):
@@ -52,7 +53,7 @@ def mjml_to_html(xml_fp_or_json, skeleton=None, template_dir=None,
     }
     # LATER: ability to override fonts via **options
 
-    globalDatas = AttrDict({
+    globalDatas = DotMap({
         'backgroundColor'    : None,
         'breakpoint'         : '480px',
         'classes'            : {},
@@ -173,7 +174,7 @@ def addComponentHeadSyle(headStyle):
     def setBackgroundColor(color):
         globalDatas.backgroundColor = color
 
-    bodyHelpers = AttrDict(
+    bodyHelpers = DotMap(
         addHeadStyle = addHeadStyle,
         addMediaQuery = addMediaQuery,
         addComponentHeadSyle = addComponentHeadSyle,
@@ -199,7 +200,7 @@ def _head_data_add(attr, *params):
             assert len(param_values) == 1, 'shortcut in implementation'
             current_attr_value[param_key] = param_values[0]
 
-    headHelpers = AttrDict(
+    headHelpers = DotMap(
         add = _head_data_add,
     )
     globalDatas.headRaw = processing(mjHead, headHelpers)
@@ -241,7 +242,7 @@ def _head_data_add(attr, *params):
 
     content = mergeOutlookConditionnals(content)
 
-    return AttrDict({
+    return DotMap({
         'html': content,
         'errors': errors,
     })
diff --git a/setup.cfg b/setup.cfg
index e77a6bd..e8c847b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,9 +40,10 @@ zip_safe = true
 include_package_data = true
 
 install_requires =
-	beautifulsoup4
-	docopt
-	jinja2
+    beautifulsoup4
+    dotmap
+    docopt
+    jinja2
 
 scripts =
 	mjml/scripts/mjml-html-compare