diff --git a/.travis.yml b/.travis.yml
index 529dadc..eb4ba43 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,14 +10,9 @@ env:
     - RACKET_DIR=~/racket
   matrix:
     - RACKET_VERSION=6.3
+    - RACKET_VERSION=6.4
+    - RACKET_VERSION=6.5
     - RACKET_VERSION=6.6
-    - RACKET_VERSION=6.9
-    - RACKET_VERSION=6.12
-    - RACKET_VERSION=7.0
-    - RACKET_VERSION=7.1
-    - RACKET_VERSION=7.2
-    - RACKET_VERSION=HEAD
-    - RACKET_VERSION=HEADCS
 
 # You may want to test against certain versions of Racket, without
 # having them count against the overall success/failure.