diff --git a/cmd/openim-sdk-core b/cmd/openim-sdk-core
new file mode 160000
index 000000000..4ce07f10e
--- /dev/null
+++ b/cmd/openim-sdk-core
@@ -0,0 +1 @@
+Subproject commit 4ce07f10e42ac2d6a6bc85a34f05c1ada6f4e5a3