diff --git a/CMakeLists.txt b/CMakeLists.txt
index 535b1e2..f45e879 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.16)
+cmake_minimum_required(VERSION 3.21)
 project(stack_usage_analyzer)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
diff --git a/extern-project/CMakeLists.txt b/extern-project/CMakeLists.txt
index f81fbf9..a3f4ae1 100644
--- a/extern-project/CMakeLists.txt
+++ b/extern-project/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.16)
+cmake_minimum_required(VERSION 3.21)
 project(consumer_example CXX)
 
 set(CMAKE_CXX_STANDARD 20)