CITATION.cff

@@ -26,5 +26,5 @@ keywords:
   - Natural resources
   - Minerla deposit
   - USGS
-license: GPL-3.0-only
+license: GPL-2.0-only
 

README.md

@@ -130,7 +130,7 @@ Riccardo Boero - ribo@nilu.no
 
 ## Licenses
 All the code and the resulting docker images in this project are subject to:
-- [![GPL v3](https://www.gnu.org/graphics/gplv3-88x31.png "License Icon")](https://www.gnu.org/licenses/gpl-3.0.en.html#license-text).
+- [GNU Generla Public License v2](https://www.gnu.org/licenses/old-licenses/gpl-2.0.html).
 
 The data is released under: 
 - [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) license.