diff --git a/.travis.yml b/.travis.yml
index 258a19b..a2ea0aa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,7 +23,12 @@ env:
 #    - RACKET_VERSION=6.11
     - RACKET_VERSION=6.12
     - RACKET_VERSION=7.0
-    - RACKET_VERSION=7.1
+ #   - RACKET_VERSION=7.1
+ #   - RACKET_VERSION=7.2
+    - RACKET_VERSION=7.3
+    - RACKET_VERSION=7.4
+    - RACKET_VERSION=7.5
+    - RACKET_VERSION=7.6
     - RACKET_VERSION=HEAD
     - RACKET_VERSION=HEADCS