diff --git a/.travis.yml b/.travis.yml
index f11f4714..82503aa8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,10 +24,11 @@ env:
     #- RACKET_VERSION=6.1
     #- RACKET_VERSION=6.1.1
     #- RACKET_VERSION=6.2
-    - RACKET_VERSION=6.3
-    - RACKET_VERSION=6.4
-    - RACKET_VERSION=6.5
-    - RACKET_VERSION=6.6
+    #- RACKET_VERSION=6.3
+    #- RACKET_VERSION=6.4
+    #- RACKET_VERSION=6.5
+    #- RACKET_VERSION=6.6
+    #- RACKET_VERSION=6.7
     - RACKET_VERSION=HEAD
 
 matrix: