diff --git a/buildspec.yml b/buildspec.yml
index 260a4c2..53993d2 100644
--- a/buildspec.yml
+++ b/buildspec.yml
@@ -7,6 +7,9 @@ env:
 phases:
   install:
     commands:
+      - sudo apt-get update
+      - sudo apt-get install zip
+      - alias md5='md5sum'
       - sudo curl -o /usr/local/bin/jq -L https://github.com/stedolan/jq/releases/download/jq-1.5/jq-linux64 && sudo chmod +x /usr/local/bin/jq
       - curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
       - sudo apt-get install -y nodejs