diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0fb1d3084..cbdca2e05 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 # SPDX-License-Identifier: Apache-2.0.
 
-cmake_minimum_required(VERSION 3.13)
+cmake_minimum_required(VERSION 3.9)
 option(ALLOW_CROSS_COMPILED_TESTS "Allow tests to be compiled via cross compile, for use with qemu" OFF)
 
 project(aws-c-common LANGUAGES C VERSION 0.1.0)