diff --git a/.travis.yml b/.travis.yml
index 8062d66..3abc879 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,9 +23,11 @@ env:
     #- RACKET_VERSION=6.0
     #- RACKET_VERSION=6.1
     #- RACKET_VERSION=6.1.1
-    - RACKET_VERSION=6.2
+    #- RACKET_VERSION=6.2
     - RACKET_VERSION=6.3
     - RACKET_VERSION=6.4
+    - RACKET_VERSION=6.5
+    - RACKET_VERSION=6.6
     - RACKET_VERSION=HEAD
 
 matrix: