diff --git a/Gemfile.lock b/Gemfile.lock
index 09109909..8c49f291 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -224,7 +224,7 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    thor (1.0.1)
+    thor (1.4.0)
     thread_safe (0.3.6)
     tilt (2.0.10)
     turbolinks (5.2.1)