diff --git a/salomon.csv b/salomon.csv
index b1b7c647b4e1534714669a77af8822083472cfa5..581767d5c303fc5b8a6941dbc7eb9c2dbe452ce7 100644
--- a/salomon.csv
+++ b/salomon.csv
@@ -1706,6 +1706,7 @@ TRIQS/2.0-gompi-2019.02,2
 turbovnc/1.2.3,2
 Ubuntu/16.04,2
 Ubuntu/16.04-OpenFOAM,2
+UDUNITS/2.2.26-intel-2017a,2
 urllib3/1.22-Py-3.6,2
 util-linux/2.26.1,2
 util-linux/2.26.1-foss-2015g,2
diff --git a/salomon.md b/salomon.md
index 328093d62f074700f7479445a01de4389484b752..cc1555ed080871a56e9a3e6d958dc91ded7d6255 100644
--- a/salomon.md
+++ b/salomon.md
@@ -388,6 +388,7 @@
 | [QMCPACK](https://qmcpack.org/) | QMCPACK, is a modern high-performance open-source Quantum Monte Carlo (QMC) simulation code. Its main applications are electronic structure calculations of molecular, quasi-2D and solid-state systems. Variational Monte Carlo (VMC), diffusion Monte Carlo (DMC) and a number of other advanced QMC algorithms are implemented. Orbital space auxiliary field QMC (AFQMC) has recently been added. By directly solving the Schrodinger equation, QMC methods offer greater accuracy than methods such as density functional theory, but at a trade-off of much greater computational expense. |
 | [Sen2Cor](http://step.esa.int/main/third-party-plugins-2/sen2cor/) | Sen2Cor is a processor for Sentinel-2 Level 2A product generation and formatting; it performs the atmospheric-, terrain and cirrus correction of Top-Of- Atmosphere Level 1C input data. Sen2Cor creates Bottom-Of-Atmosphere, optionally terrain- and cirrus corrected reflectance images; additional, Aerosol Optical Thickness-, Water Vapor-, Scene Classification Maps and Quality Indicators for cloud and snow probabilities. Its output product format is equivalent to the Level 1C User Product: JPEG 2000 images, three different resolutions, 60, 20 and 10 m. |
 | [Siesta](http://departments.icmab.es/leem/siesta) | SIESTA is both a method and its computer program implementation, to perform efficient electronic structure calculations and ab initio molecular dynamics simulations of molecules and solids. This version si compiled with OpenMP and MPI support. |
+| [UDUNITS](http://www.unidata.ucar.edu/software/udunits/) | UDUNITS supports conversion of unit specifications between formatted and binary forms, arithmetic manipulation of units, and conversion of values between compatible scales of measurement. |
 | [VASP](http://www.vasp.at) | The Vienna Ab initio Simulation Package (VASP) is a computer program for atomic scale materials modelling, e.g. electronic structure calculations and quantum-mechanical molecular dynamics, from first principles. To use VASP, You need academic licenses from University of Wiena. Follow the instructions https://www.vasp.at/index.php/faqs. Then send us please a list of authorized users and their ID for which you need this access. Please use only http://support.it4i.cz/rt. We are responsible to verify your licenses. After succesfull verification You will be granted to use VASP in our enviroment. |
 
 ## Python