diff --git a/ports/zephyr/CMakeLists.txt b/ports/zephyr/CMakeLists.txt
index ca18f2cb91..d809b7007d 100644
--- a/ports/zephyr/CMakeLists.txt
+++ b/ports/zephyr/CMakeLists.txt
@@ -22,7 +22,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-cmake_minimum_required(VERSION 3.13.1)
+cmake_minimum_required(VERSION 3.20.0)
 
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 project(micropython)