diff --git a/CHANGES.rst b/CHANGES.rst
index e6d09a6..fc88187 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,7 +1,7 @@
-0.0.31 (unreleased)
+0.0.31 (2019-02-08)
 -----------------------
 
-- No changes yet.
+- Added new functions to `~sdss_catl_utils.mocks_manager.catl_utils`
 
 0.0.3 (2019-01-21)
 -----------------------
diff --git a/setup.cfg b/setup.cfg
index 6df3842..25c071b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -41,7 +41,7 @@ github_project = vcalderon2009/sdss_catl_utils
 # install_requires = astropy, scipy, matplotlib
 install_requires = astropy, numpy, pandas, h5py, GitPython, cython, requests, numexpr, scipy, scikit-learn, BeautifulSoup4, wget, tqdm, cosmo-utils
 # version should be PEP440 compatible (https://www.python.org/dev/peps/pep-0440/)
-version = 0.0.31dev
+version = 0.0.31
 # Note: you will also need to change this in your package's __init__.py
 minimum_python_version = 3.6