diff --git a/.travis.yml b/.travis.yml
index eb0242f..66e567c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ env:
   matrix:
     - RACKET_VERSION=6.1.1
     - RACKET_VERSION=6.2
+    - RACKET_VERSION=HEAD
 
 before_install:
   - git clone https://github.com/greghendershott/travis-racket.git ../travis-racket