diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..cf42e84
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,6 @@
+.PHONY:update
+update:
+	git submodule init
+	git submodule update
+	git submodule foreach git reset --hard
+	git submodule foreach git pull origin master