diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05baf6c7..653f2d1c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.0.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
 
 # Set up the project
 project(threadx
@@ -69,4 +69,4 @@ set(CPACK_SOURCE_IGNORE_FILES
   ".*~$"
 )
 set(CPACK_VERBATIM_VARIABLES YES)
-include(CPack)
\ No newline at end of file
+include(CPack)
diff --git a/README.md b/README.md
index b3c3e456..04cbd8b8 100644
--- a/README.md
+++ b/README.md
@@ -197,7 +197,7 @@ Instruction for building the ThreadX as static library using Arm GNU Toolchain a
     An example of building the library for Cortex-M4:
 
     ```bash
-    $ cmake -Bbuild -GNinja -DCMAKE_TOOLCHAIN_FILE=cmake/cortex_m4.cmake .
+    $ cmake -Bbuild -GNinja --toolchain cmake/cortex_m4.cmake .
 
     $ cmake --build ./build
     ```