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+.. _Development dependencies:
+
+Development dependencies
+========================
+
+To use a patched version of the ``omci-sim`` library:
+
+.. code:: bash
+
+   make dep
+   cd vendor/github.com/opencord/
+   rm -rf omci-sim/
+   git clone https://gerrit.opencord.org/omci-sim
+   cd omci-sim
+
+Once done, go to ``gerrit.opencord.org`` and locate the patch you want
+to get. Click on the download URL and copy the ``Checkout`` command.
+
+It should look something like:
+
+::
+
+   git fetch ssh://teone@gerrit.opencord.org:29418/omci-sim refs/changes/67/15067/1 && git checkout FETCH_HEAD
+
+Then just execute that command in the ``omci-sim`` folder inside the
+vendored dependencies.