diff --git a/Gemfile.lock b/Gemfile.lock
index b683091..da36840 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,7 +75,7 @@ GEM
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
-    thor (1.0.1)
+    thor (1.4.0)
     tilt (2.1.0)
 
 PLATFORMS