diff --git a/salomon.csv b/salomon.csv
index 95e42e65f1c18f9c4fbbf7c3e624dd2180e442d7..982f61286621d5fde8c5cb34d71545bf1fc6c322 100644
--- a/salomon.csv
+++ b/salomon.csv
@@ -1541,6 +1541,7 @@ 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
+PyNaCl/1.2.1-Py-2.7,2
 pyparsing/2.2.0-Py-2.7,2
 pyparsing/2.2.0-Py-3.6,2
 PyQt/4.12-Py-3.6,2
diff --git a/salomon.md b/salomon.md
index 7d2c4986070be918c9fbb25b60cd5fb95c12f1f3..7de8e6fd2d7e87fa719306c5c802ee48360f9bc3 100644
--- a/salomon.md
+++ b/salomon.md
@@ -443,6 +443,7 @@
 | [pydot](https://pypi.python.org/pypi/pydot) | A Python interface to GraphViz and the DOT language. |
 | [pyFFTW](https://pypi.python.org/pypi/pyFFTW) | A pythonic wrapper around FFTW, the FFT library, presenting a unified interface for all the supported transforms. |
 | [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). |
+| [PyNaCl](https://pypi.python.org/pypi/PyNaCl) | Python binding to the Networking and Cryptography (NaCl) library |
 | [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. |
 | PyQt |   |
 | [PyQt5](http://www.riverbankcomputing.co.uk/software/pyqt) | PyQt5 is a set of Python bindings for v5 of the Qt application framework from The Qt Company. |