diff --git a/.travis.yml b/.travis.yml
index 3c4c29cb..3d52450d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,9 +8,9 @@ dist:
 language: rust
 
 rust:
-  - 1.20.0
   - 1.21.0
   - 1.22.1
+  - 1.23.0
   - stable
   - beta
   - nightly