diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2cc3f57..a0620dc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,11 @@
+if (NOT IDF_VERSION_MAJOR)
+  set(IDF_VERSION_MAJOR 3)
+endif()
+
+if (IDF_VERSION_MAJOR LESS 5)
+    message(FATAL_ERROR "Can't build: requires ESP-IDF version 5.0 or above.")
+endif()
+
 set(COMPONENT_ADD_INCLUDEDIRS include)
 set(COMPONENT_SRCS "owb.c" "owb_gpio.c" "owb_rmt.c")
 set(COMPONENT_REQUIRES "soc" "driver" "esp_rom")