diff --git a/.gitmodules b/.gitmodules
index e69de29..923e94c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "3rd/rapidjson"]
+	path = 3rd/rapidjson
+	url = https://github.com/Tencent/rapidjson.git
diff --git a/3rd/rapidjson b/3rd/rapidjson
index 5ec44fb..ab1842a 160000
--- a/3rd/rapidjson
+++ b/3rd/rapidjson
@@ -1 +1 @@
-Subproject commit 5ec44fb9206695e5293f610b0a46d21851d0c966
+Subproject commit ab1842a2dae061284c0a62dca1cc6d5e7e37e346