diff --git a/cmake/external_libs/json.cmake b/cmake/external_libs/json.cmake
index 91c1f73b458..efb21b193b3 100644
--- a/cmake/external_libs/json.cmake
+++ b/cmake/external_libs/json.cmake
@@ -3,24 +3,24 @@ if(MSVC)
     set(flatbuffers_CFLAGS "${CMAKE_CXX_FLAGS}")
     set(flatbuffers_LDFLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
 else()
-    set(nlohmann_json_CXXFLAGS "-D_FORTIFY_SOURCE=2 -O2")
-    set(nlohmann_json_CFLAGS "-D_FORTIFY_SOURCE=2 -O2")
+    set(nlohmann_json373_CXXFLAGS "-D_FORTIFY_SOURCE=2 -O2")
+    set(nlohmann_json373_CFLAGS "-D_FORTIFY_SOURCE=2 -O2")
 endif()
 
 if(ENABLE_GITEE)
-    set(REQ_URL "https://gitee.com/mirrors/JSON-for-Modern-CPP/repository/archive/v3.6.1.zip")
-    set(MD5 "36ea0d9a709c6667b2798a62f6b197ae")
+    set(REQ_URL "https://gitee.com/mirrors/JSON-for-Modern-CPP/repository/archive/v3.7.3.zip")
+    set(MD5 "b758acca4f3e133bacf919e31ca302e3")
     set(INCLUDE "./include")
 else()
-    set(REQ_URL "https://github.com/nlohmann/json/releases/download/v3.6.1/include.zip")
-    set(MD5 "0dc903888211db3a0f170304cd9f3a89")
-    set(INCLUDE "./")
+    set(REQ_URL "https://github.com/nlohmann/json/releases/download/v3.7.3/include.zip")
+    set(MD5 "fb96f95cdf609143e998db401ca4f324")
+    set(INCLUDE "./include")
 endif()
 
-mindspore_add_pkg(nlohmann_json
-        VER 3.6.1
+mindspore_add_pkg(nlohmann_json373
+        VER 3.7.3
         HEAD_ONLY ${INCLUDE}
         URL ${REQ_URL}
         MD5 ${MD5})
-include_directories(${nlohmann_json_INC})
-add_library(mindspore::json ALIAS nlohmann_json)
+include_directories(${nlohmann_json373_INC})
+add_library(mindspore::json ALIAS nlohmann_json373)