diff --git a/Makefile b/Makefile
index 4376755..d7f9cd5 100644
--- a/Makefile
+++ b/Makefile
@@ -7,5 +7,11 @@ publish: build
 clean:
 	rm -rv _site/*
 
-install_gems:
+init:
+	git submodule update --init
 	bundle install --path vendor/install
+
+update:
+	git submodule foreach git pull origin master
+	git submodule update
+	bundle update