diff --git a/docs/getting_started/getting-started.rst b/docs/getting_started/getting-started.rst
index 0a49039..979fb9e 100644
--- a/docs/getting_started/getting-started.rst
+++ b/docs/getting_started/getting-started.rst
@@ -42,7 +42,7 @@
    :header: "Name", "Version", "Component"
 
    "C compiler", see :ref:`getting_started_toolchain` ,"Firmware"
-   "CMake", ">=3.15.0", "Firmware, Documentation"
+   "CMake", ">=3.20.0", "Firmware, Documentation"
    "GNU Make", ">4.0", "Firmware, Documentation"
    "Python",3.x,"Firmware, Documentation"
    "Perl",>=5.26,"Firmware, Documentation"
@@ -125,7 +125,7 @@
 
 .. note::
 
-    Please download cmake 3.19 or later version from https://cmake.org/download/.
+    Please download cmake 3.20 or later version from https://cmake.org/download/.
 
 3. Add CMake path into environment: