Colcon build fails, cmake_minimum_required

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Hi,

For a school project I need to use a provided ROS2 workspace, wich contains 2 packages. Both packages have cmake_minimum_required(VERSION 3.18) statement on top of the CMakeLists.txt. I installed cmake version 3.25.1using snap. I also installed colcon using this command : sudo apt install python3-colcon-common-extensions.

When I run colcon build on the root of the workspace, I get the error : CMake Error at CMakeLists.txt:1 (cmake_minimum_required): CMake 3.18 or higher is required. You are running version 3.16.3, but when in my terminal I run cmake --version, I get : cmake version 3.25.1

I'm pretty new to ROS, maybe I missing something, thanks for your help.

P.S.: I'm using ROS2 Galactic and I'm working on ubuntu 20.04