diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7908ca776..a22596b1b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.12.0)
+cmake_minimum_required(VERSION 3.0.2)
 
 set(catkin_EXTRAS_DIR ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
diff --git a/cmake/python.cmake b/cmake/python.cmake
index 140c90913a19..c72b85999 100644
--- a/cmake/python.cmake
+++ b/cmake/python.cmake
@@ -1,13 +1,7 @@
 # the CMake variable PYTHON_INSTALL_DIR has the same value as the Python function catkin.builder.get_python_install_dir()
 
 set(PYTHON_VERSION "$ENV{ROS_PYTHON_VERSION}" CACHE STRING "Specify specific Python version to use ('major.minor' or 'major')")
-find_package(Python ${PYTHON_VERSION} REQUIRED)
-
-# Set these legacy variables for compatibility with what PythonInterp used to do
-set(PYTHON_EXECUTABLE ${Python_EXECUTABLE})
-set(PYTHON_VERSION_MAJOR ${Python_VERSION_MAJOR})
-set(PYTHON_VERSION_MINOR ${Python_VERSION_MINOR})
-set(PYTHON_VERSION_PATCH ${Python_VERSION_PATCH})
+find_package(PythonInterp ${PYTHON_VERSION} REQUIRED)
 
 message(STATUS "Using PYTHON_EXECUTABLE: ${PYTHON_EXECUTABLE}")