diff --git a/.travis.yml b/.travis.yml
index a74d2e6..622d07b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: python
 sudo: false
 python:
-  - 2.6
   - 2.7
   - 3.4
   - 3.5
diff --git a/ablog/blog.py b/ablog/blog.py
index bf6da89..bff4e11 100644
--- a/ablog/blog.py
+++ b/ablog/blog.py
@@ -15,10 +15,10 @@ from unicodedata import normalize
 
 from docutils import nodes
 from docutils.io import StringOutput
+from docutils.utils import new_document
 
 from sphinx import addnodes
 from sphinx.util.osutil import relative_uri
-from sphinx.environment import dummy_reporter
 
 if sys.version_info >= (3, 0):
     text_type = str
@@ -380,15 +380,14 @@ class Post(BlogPageMixin):
         from the output. More than one can be dropped by setting *drop_h1*
         to the desired number of tags to be dropped."""
 
+        doctree = new_document('')
         if fulltext:
-            doctree = nodes.document({}, dummy_reporter)
             deepcopy = self.doctree.deepcopy()
             if isinstance(deepcopy, nodes.document):
                 doctree.extend(deepcopy.children)
             else:
                 doctree.append(deepcopy)
         else:
-            doctree = nodes.document({}, dummy_reporter)
             for node in self.excerpt:
                 doctree.append(node.deepcopy())
         app = self._blog.app
diff --git a/ablog/post.py b/ablog/post.py
index f35b9e4..ce0228d 100644
--- a/ablog/post.py
+++ b/ablog/post.py
@@ -13,13 +13,8 @@ except ImportError:
 from docutils import nodes
 from sphinx.locale import _
 from sphinx.util.nodes import set_source_info
-from sphinx.util.compat import Directive
-# DeprecationWarning: make_admonition is deprecated, use docutils.parsers.rst.directives.admonitions.BaseAdmonition instead
-try:
-    from sphinx.util.compat import make_admonition
-except ImportError:
-    from docutils.parsers.rst.directives.admonitions import BaseAdmonition as make_admonition
-from docutils.parsers.rst import directives
+from docutils.parsers.rst import directives, Directive
+from docutils.parsers.rst.directives.admonitions import BaseAdmonition
 from docutils.utils import relative_path
 
 import ablog
@@ -43,7 +38,7 @@ class PostList(nodes.General, nodes.Element):
     pass
 
 
-class UpdateNode(nodes.Admonition, nodes.Element):
+class UpdateNode(nodes.admonition):
     """Represent ``update`` directive."""
 
     pass
@@ -95,22 +90,15 @@ class PostDirective(Directive):
         return [node]
 
 
-class UpdateDirective(Directive):
+class UpdateDirective(BaseAdmonition):
 
-    has_content = True
     required_arguments = 1
-    optional_arguments = 0
-    final_argument_whitespace = True
-    option_spec = {}
+    node_class = UpdateNode
 
     def run(self):
 
-        ad = make_admonition(UpdateNode, self.name, [_('Updated on')],
-                             self.options,
-                             self.content, self.lineno, self.content_offset,
-                             self.block_text, self.state, self.state_machine)
+        ad = super(UpdateDirective, self).run(self)
         ad[0]['date'] = self.arguments[0] if self.arguments else ''
-        set_source_info(self, ad[0])
         return ad