diff --git a/Gemfile.lock b/Gemfile.lock
index 97e977e..27325ca 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,7 +92,7 @@ GEM
       rack (~> 1.0)
       tilt (~> 1.0)
     sqlite3 (1.3.3)
-    therubyracer (0.8.1)
+    therubyracer-heroku (0.8.1.pre3)
     thor (0.14.6)
     tilt (1.3)
     treetop (1.4.9)
@@ -118,6 +118,6 @@ DEPENDENCIES
   rails (= 3.1.0.beta1)
   sass
   sqlite3
-  therubyracer
+  therubyracer-heroku (= 0.8.1.pre3)
   turn
   uglifier