diff --git a/LICENSE.txt b/LICENSE.txt
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -12,6 +12,8 @@ permission notice:
        file:licenses/msgpack_license.txt
    Copyright (c) 2009 - tornado
        file:licenses/tornado_license.txt
+   Copyright (c) 2015 - pygments-markdown-lexer
+       file:licenses/pygments_markdown_lexer_license.txt
 
 All licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/licenses/pygments_markdown_lexer_license.txt b/licenses/pygments_markdown_lexer_license.txt
new file mode 100644
--- /dev/null
+++ b/licenses/pygments_markdown_lexer_license.txt
@@ -0,0 +1,12 @@
+    Copyright ©  2015 Jürgen Hermann <jh@web.de>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -1081,6 +1081,19 @@
       license = [ pkgs.lib.licenses.mit ];
     };
   };
+  pygments-markdown-lexer = super.buildPythonPackage {
+    name = "pygments-markdown-lexer-0.1.0.dev39";
+    buildInputs = with self; [];
+    doCheck = false;
+    propagatedBuildInputs = with self; [Pygments];
+    src = fetchurl {
+      url = "https://pypi.python.org/packages/c3/12/674cdee66635d638cedb2c5d9c85ce507b7b2f91bdba29e482f1b1160ff6/pygments-markdown-lexer-0.1.0.dev39.zip";
+      md5 = "6360fe0f6d1f896e35b7a0142ce6459c";
+    };
+    meta = {
+      license = [ pkgs.lib.licenses.asl20 { fullName = "Apache"; } ];
+    };
+  };
   pyparsing = super.buildPythonPackage {
     name = "pyparsing-1.5.7";
     buildInputs = with self; [];
@@ -1384,7 +1397,7 @@
     name = "rhodecode-enterprise-ce-4.5.0";
     buildInputs = with self; [WebTest configobj cssselect lxml mock pytest pytest-cov pytest-runner pytest-sugar];
     doCheck = true;
-    propagatedBuildInputs = with self; [Babel Beaker FormEncode Mako Markdown MarkupSafe MySQL-python Paste PasteDeploy PasteScript Pygments Pylons Pyro4 Routes SQLAlchemy Tempita URLObject WebError WebHelpers WebHelpers2 WebOb WebTest Whoosh alembic amqplib anyjson appenlight-client authomatic backport-ipaddress celery channelstream colander decorator deform docutils gevent gunicorn infrae.cache ipython iso8601 kombu msgpack-python packaging psycopg2 py-gfm pycrypto pycurl pyparsing pyramid pyramid-debugtoolbar pyramid-mako pyramid-beaker pysqlite python-dateutil python-ldap python-memcached python-pam recaptcha-client repoze.lru requests simplejson subprocess32 waitress zope.cachedescriptors dogpile.cache dogpile.core psutil py-bcrypt];
+    propagatedBuildInputs = with self; [Babel Beaker FormEncode Mako Markdown MarkupSafe MySQL-python Paste PasteDeploy PasteScript Pygments Pylons Pyro4 Routes SQLAlchemy Tempita URLObject WebError WebHelpers WebHelpers2 WebOb WebTest Whoosh alembic amqplib anyjson appenlight-client authomatic backport-ipaddress celery channelstream colander decorator deform docutils gevent gunicorn infrae.cache ipython iso8601 kombu msgpack-python packaging psycopg2 py-gfm pycrypto pycurl pygments-markdown-lexer pyparsing pyramid pyramid-debugtoolbar pyramid-mako pyramid-beaker pysqlite python-dateutil python-ldap python-memcached python-pam recaptcha-client repoze.lru requests simplejson subprocess32 waitress zope.cachedescriptors dogpile.cache dogpile.core psutil py-bcrypt];
     src = ./.;
     meta = {
       license = [ { fullName = "AGPLv3, and Commercial License"; } ];
diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,6 +12,7 @@ Paste==2.0.2
 PasteDeploy==1.5.2
 PasteScript==1.7.5
 Pygments==2.1.3
+pygments-markdown-lexer==0.1.0.dev39
 
 # TODO: This version is not available on PyPI
 # Pylons==1.0.2.dev20160108