diff --git a/.travis.yml b/.travis.yml
index 4a11918..a162235 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,10 +3,12 @@ rust:
     - stable
     - beta
     - nightly
+    - 1.28.0 # Ubuntu Bionic and Xenial
 
 matrix:
     allow_failures:
         - rust: nightly
+        - 1.28.0
     fast_finish: true
 
 cache: cargo