diff --git a/CMakeLists.txt b/CMakeLists.txt
index 540d643..5d12f3d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,12 +17,14 @@ execute_process(
     COMMAND mkdir ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty
     ERROR_QUIET
 )
+# new commit that fixes c++17
+set(RAPIDJSON_SHA 3b2441b87f99ab65f37b141a7b548ebadb607b96)
 
-find_file(RAPIDJSONTEST NAMES rapidjson rapidjson-1.1.0 PATHS ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty CMAKE_FIND_ROOT_PATH_BOTH)
+find_file(RAPIDJSONTEST NAMES rapidjson rapidjson-${RAPIDJSON_SHA} PATHS ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty CMAKE_FIND_ROOT_PATH_BOTH)
 if (NOT RAPIDJSONTEST)
     message("no rapidjson, download")
-    set(RJ_TAR_FILE ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/v1.1.0.tar.gz)
-    file(DOWNLOAD https://github.com/miloyip/rapidjson/archive/v1.1.0.tar.gz ${RJ_TAR_FILE})
+    set(RJ_TAR_FILE ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/${RAPIDJSON_SHA}.tar.gz)
+    file(DOWNLOAD https://github.com/miloyip/rapidjson/archive/${RAPIDJSON_SHA}.tar.gz ${RJ_TAR_FILE})
     execute_process(
         COMMAND ${CMAKE_COMMAND} -E tar xzf ${RJ_TAR_FILE}
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty
@@ -30,7 +32,7 @@ if (NOT RAPIDJSONTEST)
     file(REMOVE ${RJ_TAR_FILE})
 endif(NOT RAPIDJSONTEST)
 
-find_file(RAPIDJSON NAMES rapidjson rapidjson-1.1.0 PATHS ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty CMAKE_FIND_ROOT_PATH_BOTH)
+find_file(RAPIDJSON NAMES rapidjson rapidjson-${RAPIDJSON_SHA} PATHS ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty CMAKE_FIND_ROOT_PATH_BOTH)
 
 add_library(rapidjson STATIC IMPORTED ${RAPIDJSON})