diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index 974324c7699a24d62f9ec46c24ebbcefff701b79..cd12a3ab5fc28c98df0ca7c79814a80980f32df7 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -34,8 +34,8 @@ option(USE_EXISTING_SRC_DIR
 include(ExternalProject)
 
 if(USE_BUNDLED_BOOST)
-  # bundled boost is 1.68, which requires CMake 3.13 or greater.
-  cmake_minimum_required(VERSION 3.13)
+  # bundled boost is 1.68, which requires CMake 3.12 or greater.
+  cmake_minimum_required(VERSION 3.12)
 endif()
 
 set(BOOST_URL