Update README

README.md

@@ -34,7 +34,7 @@ make -j$(nproc)
 
 We provide access to a pre-trained model if you don't have access to labeled data. Please note the model was generated using a limited number of samples and it might not work well with all datasets.
 
- * [model.bin](https://github.com/uav4geo/OpenPointClass/releases/download/v1.1.0/model.zip)
+ * [model.bin](https://github.com/uav4geo/OpenPointClass/releases/download/v1.1.1/model.zip)
 
 Training classes are assumed to follow the [ASPRS 1.4 Classification](https://www.asprs.org/wp-content/uploads/2019/03/LAS_1_4_r14.pdf) and to be stored in either a `label`, `class` or `classification` property.