diff --git a/aiozmq/__init__.py b/aiozmq/__init__.py
index 8ebe5c0..a897854 100644
--- a/aiozmq/__init__.py
+++ b/aiozmq/__init__.py
@@ -12,7 +12,7 @@
            'ZmqTransport', 'ZmqProtocol',
            'version_info', 'version')
 
-__version__ = '0.4.0'
+__version__ = '0.4.1'
 
 version = __version__ + ' , Python ' + sys.version
 
diff --git a/docs/Makefile b/docs/Makefile
index c907589..5ae8e88 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -151,3 +151,8 @@ doctest:
 	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
 	@echo "Testing of doctests in the sources finished, look at the " \
 	      "results in $(BUILDDIR)/doctest/output.txt."
+
+spelling:
+	$(SPHINXBUILD) -b spelling -d $(BUILDDIR)/doctrees . $(BUILDDIR)/spelling
+	@echo
+	@echo "Spelling checker messages written to $(BUILDDIR)/spelling/output.txt."
diff --git a/docs/conf.py b/docs/conf.py
index d096a2e..dc83485 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -16,14 +16,13 @@
 
 sys.version
 
-#sys.path.insert(0, os.path.abspath('..'))
-#import aiozmq
+sys.path.insert(0, os.path.abspath('..'))
+import aiozmq
 
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-#sys.path.insert(0, os.path.abspath('.'))
 
 # -- General configuration -----------------------------------------------------
 
@@ -33,7 +32,8 @@
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = ['sphinx.ext.viewcode', 'sphinx.ext.autodoc',
-              'sphinx.ext.intersphinx']
+              'sphinx.ext.intersphinx',
+              'sphinxcontrib.spelling']
 
 intersphinx_mapping = {'python': ('http://docs.python.org/3', None),
                        'pyzmq': ('http://zeromq.github.io/pyzmq', None)}
@@ -62,8 +62,8 @@
 #version = '.'.join(str(i) for i in aiozmq.version_info[:2])
 # The full version, including alpha/beta/rc tags.
 #release = aiozmq.__version__
-version = "0.4"
-release = "0.4"
+version = ".".join(str(i) for i in aiozmq.version_info[0:2])
+release = aiozmq.__version__
 
 
 # The language for content autogenerated by Sphinx. Refer to documentation
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..ef813d8
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,3 @@
+pyzmq
+sphinxcontrib-spelling
+pyenchant
diff --git a/docs/spelling_wordlist.txt b/docs/spelling_wordlist.txt
new file mode 100644
index 0000000..e69de29
diff --git a/requirements.txt b/requirements.txt
index 928946e..c1b761c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-matplotlib>=1.3.1
+matplotlib
 msgpack-python>=0.4.2
 nose>=1.3.1
 numpy>=1.8.1
@@ -15,3 +15,5 @@ coverage>=3.7
 elpy
 jedi
 rope_py3k
+sphinxcontrib.spelling
+pyenchant