diff --git a/.travis.yml b/.travis.yml
index f5df11e..f92e7de 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,10 @@ env:
   matrix:
     # RACKET_VERSION is an argument to install-racket.sh
     - RACKET_VERSION=6.8
+    - RACKET_VERSION=6.9
+    - RACKET_VERSION=6.10
+    - RACKET_VERSION=6.11
+    - RACKET_VERSION=6.12
     - RACKET_VERSION=RELEASE
     - RACKET_VERSION=HEAD