diff --git a/README.md b/README.md
index 7bd7250..972eb77 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@ The GeoPortal Data Viewer App is an application to access, discovery and navigat
 * GWT-Bootstrap v.2.3.2.0. [GWT-Bootstrap](https://github.com/gwtbootstrap) is licensed under [Apache License 2.0](http://www.apache.org/licenses/LICENSE-2.0)
 * GWT-OpenLayers 3+ v.8.1.0-gwt2_9. [GWT-OL3](https://github.com/TDesjardins/gwt-ol)
 * OpenLayers v.6.x [OpenLayers](https://openlayers.org/) is licensed under [BSD 2-Clause "Simplified"](https://github.com/openlayers/openlayers/blob/main/LICENSE.md)
+* NanoGallery v2.X [NanoGallery2](https://github.com/nanostudio-org/nanogallery2) is licensed under [GNU General Public License "gplv3"](https://www.gnu.org/licenses/gpl-3.0.html)
 * Vis-Timeline v7.x [VisTimeline](https://github.com/visjs/vis-timeline) is licensed under [Apache License 2.0](http://www.apache.org/licenses/LICENSE-2.0) and MIT
 * Handlebarsjs v4.x [Handlebarsjs](https://handlebarsjs.com/) is licensed under MIT