diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3e4c4d1..cfe023d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.24 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.18...3.24 FATAL_ERROR)
 
 # cmake setup begin
 project(solanaceae_ircclient)
diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index e7030cf..d57f93e 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.24 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.18...3.24 FATAL_ERROR)
 
 include(FetchContent)
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f1b4d4c..10a51fe 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.9...3.24 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.18...3.24 FATAL_ERROR)
 
 project(solanaceae)