diff --git a/.travis.yml b/.travis.yml
index cd67875e24..8a65edabc6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -78,6 +78,9 @@ matrix:
       language: ruby
       rvm: 2.3
       name: Running ruby/spec on 2.3 to ensure version guards are correctly added
+      addons:
+        apt:
+          packages:
       before_install:
       install:
       before_script: chmod -R u+w spec/ruby