diff --git a/artoo/tools/install-vagrant-deps.sh b/artoo/tools/install-vagrant-deps.sh
index a6490a5..296a245 100644
--- a/artoo/tools/install-vagrant-deps.sh
+++ b/artoo/tools/install-vagrant-deps.sh
@@ -1,3 +1,5 @@
+sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 6AF0E1940624A220
+sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 6D1D8367A3421AFB
 
 apt-add-repository 'deb http://ppa.launchpad.net/anatol/tup/ubuntu precise main' -y
 add-apt-repository 'ppa:terry.guo/gcc-arm-embedded' -y