diff --git a/.travis.yml b/.travis.yml
index 43c0d20..3ed0147 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,8 @@ rust:
     - "1.39.0"
     - "1.40.0"
     - "1.41.1"
+    - "1.42.0"
+    - "1.43.1"
     - "stable"
     - "beta"
     - "nightly"