diff --git a/Gemfile.lock b/Gemfile.lock
index c707078ba..31e4435d0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -73,7 +73,7 @@ GEM
     coffee-script (2.2.0)
       coffee-script-source
       execjs
-    coffee-script-source (1.4.0)
+    coffee-script-source (1.6.2)
     compass (0.12.2)
       chunky_png (~> 1.2)
       fssm (>= 0.2.7)