diff --git a/.travis.yml b/.travis.yml
index aee775d..cbcedfa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ language: rust
 rust:
   - nightly
   # Minimum Rust set by Rocket
-  - nightly-2018-06-22
+  - nightly-2018-06-23
 branches:
   only:
   - master