diff --git a/.travis.yml b/.travis.yml
index 24404fb9..8df10447 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,6 +28,8 @@ env:
     - RACKET_VERSION=6.4
     - RACKET_VERSION=6.5
     - RACKET_VERSION=6.6
+    - RACKET_VERSION=6.7
+    - RACKET_VERSION=6.8
     - RACKET_VERSION=HEAD
 
 matrix: