diff --git a/CMakeLists.txt b/CMakeLists.txt
index 93b175d..def55a8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,7 @@ endif()
 option(ENABLE_OPEN_SRC "Enable graphengine compile in opensource." FALSE)
 
 if (ENABLE_OPEN_SRC)
-    set(HI_PYTHON python3.7)
+    set(HI_PYTHON python3)
 
     include(cmake/external_libs/protobuf_shared.cmake)
     include(cmake/external_libs/protoc.cmake)
diff --git a/metadef b/metadef
index 220067e..4b13d69 160000
--- a/metadef
+++ b/metadef
@@ -1 +1 @@
-Subproject commit 220067ec17e13e5cc913e9e2c5895fcabaa5bd59
+Subproject commit 4b13d69c481624560af8854e5d9500cd5cadde8f