diff --git a/CMakeLists.txt b/CMakeLists.txt
index b739ae005ebc9c615b29285c4c1333c1976a856e..78aab7ca3c9beb6bdfa4ed6f138e256783c32ac4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@
 #                                                                                                                     
 # SPDX-FileCopyrightText: Louis Moureaux <louis.moureaux@cern.ch>
 
-cmake_minimum_required(VERSION 3.17...3.28 FATAL_ERROR)                                                               
+cmake_minimum_required(VERSION 3.23...3.28 FATAL_ERROR)                                                               
 
 # Set a useful default install directory but let the user override it
 set(CMAKE_INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/tools" CACHE PATH
diff --git a/cmake/TUnfold/CMakeLists.txt b/cmake/TUnfold/CMakeLists.txt
index 8da8289a86e82b15a7b39ded5f24bbe3631c7e47..f855ee035c05a984c566ee93447fe65a2bd62c52 100644
--- a/cmake/TUnfold/CMakeLists.txt
+++ b/cmake/TUnfold/CMakeLists.txt
@@ -2,7 +2,7 @@
 #
 # SPDX-FileCopyrightText: Louis Moureaux <louis.moureaux@cern.ch>
 
-cmake_minimum_required(VERSION 3.17..3.26 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.23..3.26 FATAL_ERROR)
 project(TUnfold VERSION 17.9 LANGUAGES CXX)
 
 find_package(ROOT 6.24 REQUIRED)