diff --git a/.travis.yml b/.travis.yml
index 1e3cfea7..367577e8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ language: rust
 cache: cargo
 rust:
   - nightly
-  - nightly-2017-10-11
+  - nightly-2018-06-19
   - beta
   - stable
   - 1.20.0