diff --git a/cmake/external_libs/json.cmake b/cmake/external_libs/json.cmake
index f486752..cd13741 100755
--- a/cmake/external_libs/json.cmake
+++ b/cmake/external_libs/json.cmake
@@ -7,15 +7,15 @@ include(ExternalProject)
 set(JSON_SRC_DIR ${CMAKE_BINARY_DIR}/opensrc/json/include)
 if (PARSER_PB_PKG)
     set(REQ_URL "${PARSER_PB_PKG}/libs/ge_nlohmann_json/include.zip")
-    set(MD5 "0dc903888211db3a0f170304cd9f3a89")
+    set(MD5 "fb96f95cdf609143e998db401ca4f324")
     set(JSON_INCLUDE_DIR ${JSON_SRC_DIR})
 #if (ENABLE_GITEE)
 #    set(REQ_URL "https://gitee.com/mirrors/JSON-for-Modern-CPP/repository/archive/v3.6.1.zip")
 #    set(MD5 "5bda78ce308e6cfcf614dcf1d5ff27a7")
 #    set(JSON_INCLUDE_DIR "${JSON_SRC_DIR}/include")
 else()
-    set(REQ_URL "https://github.com/nlohmann/json/releases/download/v3.6.1/include.zip")
-    set(MD5 "0dc903888211db3a0f170304cd9f3a89")
+    set(REQ_URL "https://github.com/nlohmann/json/releases/download/v3.7.3/include.zip")
+    set(MD5 "fb96f95cdf609143e998db401ca4f324")
     set(JSON_INCLUDE_DIR ${JSON_SRC_DIR})
 endif ()
 ExternalProject_Add(json_build
@@ -25,7 +25,7 @@ ExternalProject_Add(json_build
                     CONFIGURE_COMMAND ""
                     BUILD_COMMAND ""
                     INSTALL_COMMAND ""
-                    EXCLUDE_FROM_ALL TRUE 
+                    EXCLUDE_FROM_ALL TRUE
 )