diff --git a/.travis.yml b/.travis.yml
index c06b269..aa6855a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,14 @@ env:
     #- RACKET_VERSION=6.6 # tests fail with a typed/racket bug: "make-chaperone-contract::late-neg-projection: contract violation"
     - RACKET_VERSION=6.7
     - RACKET_VERSION=6.8
-    - RACKET_VERSION=RELEASE
+    - RACKET_VERSION=6.9
+    - RACKET_VERSION=6.10
+    - RACKET_VERSION=6.10.1
+    - RACKET_VERSION=6.11
+    - RACKET_VERSION=6.12
+    - RACKET_VERSION=7.0
+    - RACKET_VERSION=7.1
+    - RACKET_VERSION=7.2
     - RACKET_VERSION=HEAD
 
 before_install: