diff --git a/CMakeLists.txt b/CMakeLists.txt
index cfd4faa32..f2632af46 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file. See the AUTHORS file for names of contributors.
 
-cmake_minimum_required(VERSION 3.9)
+cmake_minimum_required(VERSION 3.22)
 # Keep the version below in sync with the one in db.h
 project(leveldb VERSION 1.22.0 LANGUAGES C CXX)
 
@@ -11,8 +11,8 @@ set(CMAKE_C_STANDARD 11)
 set(CMAKE_C_STANDARD_REQUIRED OFF)
 set(CMAKE_C_EXTENSIONS OFF)
 
-# This project requires C++11.
-set(CMAKE_CXX_STANDARD 11)
+# This project requires C++17.
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)