diff --git a/salomon.csv b/salomon.csv
index 9536bfd5ff756d7a23ca8f414fbba66550de971a..125c004066113f88e5ca2c041e1f1046e1b73f96 100644
--- a/salomon.csv
+++ b/salomon.csv
@@ -1367,6 +1367,7 @@ PyCairo/1.10.0-Python-2.7.13-base,2
 PyGObject/2.28.6-Python-2.7.13-base,2
 PyGTK/2.24.0-Python-2.7.13-base,2
 pylint/1.7.2-Python-2.7.13-base,2
+pymatgen/2018.1.29-Py-3.6,2
 pyparsing/2.2.0-Py-2.7,2
 pyparsing/2.2.0-Py-3.6,2
 PyQt/4.11.3-foss-2015g-Python-2.7.9,2
@@ -1413,6 +1414,7 @@ pytz/2017.3-Py-3.6,2
 PYXAID/1.0,2
 PyYAML/3.11-intel-2015b-Python-2.7.9,2
 PyYAML/3.12-Py-2.7,2
+PyYAML/3.12-Py-3.6,2
 PyYAML/3.12-Python-2.7.13-base,2
 pyzmq/16.0.4-Py-2.7,2
 QBOX/r140b-foss-2016a,2
diff --git a/salomon.md b/salomon.md
index 5667a91848a66e92ce7cb6ced7104a2f9bb44bc2..53df303e927119bf2144289ece06423a4e77fd4c 100644
--- a/salomon.md
+++ b/salomon.md
@@ -386,6 +386,7 @@
 | [phonopy](http://python.org/) | Python is a programming language that lets you work more quickly and integrate your systems more effectively. |
 | [pluggy](https://github.com/pytest-dev/pluggy) | Plugin and hook calling mechanisms for python. |
 | [pudb](https://pypi.python.org/pypi/pudb) | PuDB is a full-screen, console-based visual debugger for Python. |
+| [pymatgen](https://pypi.python.org/pypi/pymatgen) | Python Materials Genomics is a robust materials analysis code that defines core object representations for structures and molecules with support for many electronic structure codes. It is currently the core analysis code powering the Materials Project (https://www.materialsproject.org). |
 | [pyparsing](http://pyparsing.wikispaces.com) | The pyparsing module provides a library of classes that client code uses to construct the grammar directly in Python code. |
 | [pytest](http://pytest.org) | Simple powerful testing with Python |
 | [python-dateutil](https://github.com/dateutil/dateutil) | Useful extensions to the standard Python datetime features. |