diff --git a/.travis.yml b/.travis.yml
index 3f2e864..5dd72f4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,11 @@
 language: ruby
 sudo: false
-script: "set -e && gem install github-pages && jekyll build --drafts"
+script:
+  - "gem install github-pages"
+  - "jekyll build --drafts"
+    "python2 --version && python2 -m pip --version"
+  - "python2 -m pip install html5validator --user --upgrade"
+  - "~/.local/bin/html5validator --root _site/|true"
 rvm: 2.1
 notifications:
     email: false