diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9a1e372c4c..8a6a28510a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.9)
 
 # See https://cmake.org/cmake/help/v3.3/policy/CMP0057.html required by certain
 # versions of gtest