diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index fd7e5650d..000000000
--- a/.gitmodules
+++ /dev/null
@@ -1,12 +0,0 @@
-[submodule "app/appearance"]
-	path = app/appearance
-	url = git@github.com:siyuan-note/appearance.git
-[submodule "app/guide/20210808180117-czj9bvb"]
-	path = app/guide/20210808180117-czj9bvb
-	url = git@github.com:siyuan-note/user-guide-zh_CN.git
-[submodule "app/guide/20210808180117-6v0mkxr"]
-	path = app/guide/20210808180117-6v0mkxr
-	url = git@github.com:siyuan-note/user-guide-en_US.git
-[submodule "app/guide/20211226090932-5lcq56f"]
-	path = app/guide/20211226090932-5lcq56f
-	url = git@github.com:siyuan-note/user-guide-zh_CHT.git