diff --git a/README.rst b/README.rst
index e54dbdb8819df4dc96dc1a1d04a5ca7152f23e29..59da79795aeb42d469676117841a7897b162cbc9 100644
--- a/README.rst
+++ b/README.rst
@@ -1,7 +1,7 @@
 Sen2Chain
 =========
 
-Sen2Chain is a simple utility to download and process Sentinel-2 images.
+Sen2Chain is a simple utility written in Python 3 to download and process Sentinel-2 images.
 
 It uses the `sentinelsat <https://github.com/sentinelsat/sentinelsat>`_ and `peps_download <https://github.com/olivierhagolle/peps_download>`_ packages to find and download data, and ESA's `Sen2Cor <http://step.esa.int/main/third-party-plugins-2/sen2cor/>`_ processor to perform atmospheric, terrain and cirrus correction.