diff --git a/.travis.yml b/.travis.yml
index 29c965cb..7d8bda91 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -48,6 +48,7 @@ matrix:
     - rust: 1.21.0
     - rust: 1.25.0
     - rust: 1.26.0
+    - rust: 1.34.0
 
     - rust: 1.36.0
       script: