diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..9ec9787
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "themes/mainroad"]
+	path = themes/mainroad
+	url = https://github.com/vimux/mainroad
diff --git a/themes/mainroad b/themes/mainroad
index 279cd6c..6167552 160000
--- a/themes/mainroad
+++ b/themes/mainroad
@@ -1 +1 @@
-Subproject commit 279cd6cbf36560db8b03bd54804e25ff8e3c26a1
+Subproject commit 6167552546f60f5a22344909061afa5b62754555
diff --git a/themes/simpleit-hugo-theme b/themes/simpleit-hugo-theme
deleted file mode 160000
index 062b4a1..0000000
--- a/themes/simpleit-hugo-theme
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 062b4a11a7e4df3eaeb09877c49ef22c9300c4a4