diff --git a/src/map_building/c_utils/README.md b/src/map_building/c_utils/README.md
index 8bd46f8..6afb434 100644
--- a/src/map_building/c_utils/README.md
+++ b/src/map_building/c_utils/README.md
@@ -23,7 +23,7 @@ Note that depending on the setup of the pybind11 library, one has to give the pa
 for the pybind library, e.g.:
 
 ```
-cmake .. -Dpybind11_DIR=/usr/local/lib/python3.6/dist-packages/pybind11/share/cmake/pybind11
+cmake .. -Dpybind11_DIR=/usr/local/lib/python3.8/dist-packages/pybind11/share/cmake/pybind11
 ```
 Or, one could add pybind11 as a subdirectory inside the c++ project and directly compile it. 
 For more details we refer to the pybind11 compiling [doc](https://pybind11.readthedocs.io/en/stable/compiling.html).