diff --git a/.travis.yml b/.travis.yml
index 5421169..be8fc4b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,3 +9,7 @@ rvm:
 
 cache: bundler
 script: bundle exec middleman build
+
+matrix:
+  allow_failures:
+  - rvm: 2.4.0