diff --git a/.travis.yml b/.travis.yml
index 99996bc..9d88d6f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ rust:
   - 1.36.0
   - 1.37.0
   - 1.38.0
+  - 1.39.0
   - stable
   - beta
   - nightly