diff --git a/Makefile b/Makefile
index e15f1a2..bdf68c4 100644
--- a/Makefile
+++ b/Makefile
@@ -9,6 +9,7 @@ endif
 all: build
 
 build:
+	apt-get update
 	apt-get install --yes --no-install-recommends curl ca-certificates
 	curl --silent --location https://deb.nodesource.com/setup_0.12 | bash -
 	apt-get install --yes nodejs