diff --git a/anselm.csv b/anselm.csv
index eadac4d60a726570e640519d5a19548e96a1ca52..efc13f315a430b2c143e0866c11a5843ae41f773 100644
--- a/anselm.csv
+++ b/anselm.csv
@@ -847,6 +847,7 @@ Py/3.6,1
 pybtex/0.21-Py-3.6,1
 PyDispatcher/2.0.5-Py-3.6,1
 pylint/1.7.2-Python-2.7.13-base,1
+pymatgen/2018.1.29-Py-3.6,1
 pyparsing/2.2.0-Py-3.6,1
 Python/2.7.11-intel-2015b,1
 Python/2.7.11-intel-2017a,1
diff --git a/anselm.md b/anselm.md
index eca3300eb5087a981c5afa405d76b4b6f7b23d3c..e3dd851a7df6de4f6942d75e54abe355471b311f 100644
--- a/anselm.md
+++ b/anselm.md
@@ -402,6 +402,7 @@
 | [pandas](https://pypi.python.org/pypi/pandas) | Powerful data structures for data analysis, time series,and statistics. |
 | [pybtex](https://pypi.python.org/pypi/pybtex) | A BibTeX-compatible bibliography processor in Python. |
 | [PyDispatcher](https://pypi.python.org/pypi/PyDispatcher) | Multi-producer-multi-consumer signal dispatching mechanism. |
+| [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. |
 | [python-dateutil](https://github.com/dateutil/dateutil) | Useful extensions to the standard Python datetime features. |
 | [pytz](http://pytz.sourceforge.net/) | pytz brings the Olson tz database into Python. This library allows accurate and cross platform timezone calculations using Python 2.4 or higher. |