Configure CMake itself with policies through CMake 3.31
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c1a12cb..ca0d5ab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
 # file Copyright.txt or https://cmake.org/licensing for details.
 
-cmake_minimum_required(VERSION 3.13...3.30 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.13...3.31 FATAL_ERROR)
 set(CMAKE_USER_MAKE_RULES_OVERRIDE_C ${CMAKE_CURRENT_SOURCE_DIR}/Source/Modules/OverrideC.cmake)
 set(CMAKE_USER_MAKE_RULES_OVERRIDE_CXX ${CMAKE_CURRENT_SOURCE_DIR}/Source/Modules/OverrideCXX.cmake)
 
diff --git a/Source/Checks/Curses/CMakeLists.txt b/Source/Checks/Curses/CMakeLists.txt
index 1f04bd2..255143d 100644
--- a/Source/Checks/Curses/CMakeLists.txt
+++ b/Source/Checks/Curses/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.13...3.30 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.13...3.31 FATAL_ERROR)
 project(CheckCurses C)
 
 set(CURSES_NEED_NCURSES TRUE)
diff --git a/Utilities/Doxygen/CMakeLists.txt b/Utilities/Doxygen/CMakeLists.txt
index 64f9a3f..0426da6 100644
--- a/Utilities/Doxygen/CMakeLists.txt
+++ b/Utilities/Doxygen/CMakeLists.txt
@@ -3,7 +3,7 @@
 
 if(NOT CMake_SOURCE_DIR)
   set(CMakeDeveloperReference_STANDALONE 1)
-  cmake_minimum_required(VERSION 3.13...3.30 FATAL_ERROR)
+  cmake_minimum_required(VERSION 3.13...3.31 FATAL_ERROR)
   get_filename_component(tmp "${CMAKE_CURRENT_SOURCE_DIR}" PATH)
   get_filename_component(CMake_SOURCE_DIR "${tmp}" PATH)
   include(${CMake_SOURCE_DIR}/Modules/CTestUseLaunchers.cmake)
diff --git a/Utilities/Sphinx/CMakeLists.txt b/Utilities/Sphinx/CMakeLists.txt
index a919b91..e171ddd 100644
--- a/Utilities/Sphinx/CMakeLists.txt
+++ b/Utilities/Sphinx/CMakeLists.txt
@@ -3,7 +3,7 @@
 
 if(NOT CMake_SOURCE_DIR)
   set(CMakeHelp_STANDALONE 1)
-  cmake_minimum_required(VERSION 3.13...3.30 FATAL_ERROR)
+  cmake_minimum_required(VERSION 3.13...3.31 FATAL_ERROR)
   get_filename_component(tmp "${CMAKE_CURRENT_SOURCE_DIR}" PATH)
   get_filename_component(CMake_SOURCE_DIR "${tmp}" PATH)
   include(${CMake_SOURCE_DIR}/Modules/CTestUseLaunchers.cmake)