diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 38b7159..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "binding/ip2region4php"]
-	path = binding/ip2region4php
-	url = https://git.oschina.net/monsterkiller/ip2region.git
diff --git a/binding/ip2region4php b/binding/ip2region4php
deleted file mode 160000
index fc48495..0000000
--- a/binding/ip2region4php
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit fc4849567b3af642f544a804ff6f411cc83862b6