diff --git a/.gitmodules b/.gitmodules
index 6840b7a..e69de29 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "emqx-docker"]
-	path = emqx-docker
-	url = https://github.com/furyhawk/emqx-docker.git
diff --git a/emqx-docker b/emqx-docker
deleted file mode 160000
index 554e4b1..0000000
--- a/emqx-docker
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 554e4b18725da24a974f37d810675126f30c1e1d