diff --git a/README.md b/README.md
index 3c28ecf..99c32f8 100644
--- a/README.md
+++ b/README.md
@@ -469,6 +469,8 @@ Long list of geospatial analysis tools. Geospatial analysis, or just spatial ana
 * [gdalcubes](https://github.com/appelmar/gdalcubes) - gdalcubes is a library to represent collections of Earth Observation (EO) images as on demand data cubes (or multidimensional arrays).
 * [hydroflow](https://github.com/sistemalabgis/hydroflow) - Compute drainage orders in drainage basins using Strahler and Shreve methods.
 * [otbtf](https://github.com/remicres/otbtf) - Deep learning with otb.
+* [prepair](https://github.com/tudelft3d/prepair) - Automatic repair of single polygons (according to the OGC Simple Features / ISO19107 rules) using a constrained triangulation.
+* [pprepair](https://github.com/tudelft3d/pprepair) - Validation and Automatic Repair of Planar Partitions.
 
 
 ## C