diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0bf9cf3..56d75a1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,11 +1,11 @@
 cmake_minimum_required(VERSION 3.18)
 project(navicat-keygen)
 
-set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 find_package(fmt REQUIRED)
-# find_package(RapidJSON REQUIRED)
+find_package(RapidJSON REQUIRED)
 find_package(OpenSSL REQUIRED)
 
 include(FetchContent)