diff --git a/CHANGES.rst b/CHANGES.rst
index c271b8c0..5ed3b8dd 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Release Notes
 -------------
 
+**1.13.0 (2016-12-19)**
+
+* Disable ANSI codes support by default due to dependency on
+  `ansi2html <https://pypi.python.org/pypi/ansi2html/>`_ package with less
+  permissive licensing
+
 **1.12.0 (2016-11-30)**
 
 * Add support for JPG and SVG images
diff --git a/README.rst b/README.rst
index 8f5d343c..43aeaf2e 100644
--- a/README.rst
+++ b/README.rst
@@ -43,6 +43,15 @@ Then run your tests with:
 
   $ pytest --html=report.html
 
+ANSI codes
+----------
+
+Note that ANSI code support depends on the
+`ansi2html <https://pypi.python.org/pypi/ansi2html/>`_ package. Due to the use
+of a less permissive license, this package is not included as a dependency. If
+you have this package installed, then ANSI codes will be converted to HTML in
+your report.
+
 Creating a self-contained report
 ----------------------------------
 
diff --git a/pytest_html/plugin.py b/pytest_html/plugin.py
index f3b70af3..30d0f3d6 100644
--- a/pytest_html/plugin.py
+++ b/pytest_html/plugin.py
@@ -15,7 +15,13 @@
 import bisect
 import hashlib
 
-from ansi2html import Ansi2HTMLConverter, style
+try:
+    from ansi2html import Ansi2HTMLConverter, style
+    ANSI = True
+except ImportError:
+    # ansi2html is not installed
+    ANSI = False
+
 import pytest
 from py.xml import html, raw
 
@@ -233,8 +239,9 @@ def append_log_html(self, report, additional_html):
             for header, content in report.sections:
                 log.append(' {0} '.format(header).center(80, '-'))
                 log.append(html.br())
-                content = Ansi2HTMLConverter(inline=False).convert(content,
-                                                                   full=False)
+                if ANSI:
+                    converter = Ansi2HTMLConverter(inline=False)
+                    content = converter.convert(content, full=False)
                 log.append(raw(content))
 
             if len(log) == 0:
@@ -297,12 +304,13 @@ def _generate_report(self, session):
         if PY3:
             self.style_css = self.style_css.decode('utf-8')
 
-        ansi_css = [
-            '\n/******************************',
-            ' * ANSI2HTML STYLES',
-            ' ******************************/\n']
-        ansi_css.extend([str(r) for r in style.get_styles()])
-        self.style_css += '\n'.join(ansi_css)
+        if ANSI:
+            ansi_css = [
+                '\n/******************************',
+                ' * ANSI2HTML STYLES',
+                ' ******************************/\n']
+            ansi_css.extend([str(r) for r in style.get_styles()])
+            self.style_css += '\n'.join(ansi_css)
 
         css_href = '{0}/{1}'.format('assets', 'style.css')
         html_css = html.link(href=css_href, rel='stylesheet',
diff --git a/setup.py b/setup.py
index 126d8722..0d257fb3 100644
--- a/setup.py
+++ b/setup.py
@@ -11,8 +11,7 @@
       package_data={'pytest_html': ['resources/*']},
       entry_points={'pytest11': ['html = pytest_html.plugin']},
       setup_requires=['setuptools_scm'],
-      install_requires=['ansi2html>=1.1.1',
-                        'pytest>=2.3'],
+      install_requires=['pytest>=2.3'],
       license='Mozilla Public License 2.0 (MPL 2.0)',
       keywords='py.test pytest html report',
       classifiers=[
diff --git a/tox.ini b/tox.ini
index 4ffc8467..842c8dc9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,7 @@ envlist = py{26,27,33,34,35,py,py3}-pytest{29,30}, flake8
 [testenv]
 commands = py.test -v -r a {posargs}
 deps =
+    ansi2html==1.1.1
     pytest29: pytest==2.9.2
     pytest30: pytest==3.0.4
     pytest-xdist