diff --git a/Gemfile.lock b/Gemfile.lock
index 930ebc3e..bed3b9fb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -259,7 +259,7 @@ GEM
     sqlite3 (2.6.0-x86_64-darwin)
     sqlite3 (2.6.0-x86_64-linux-gnu)
     stringio (3.1.6)
-    thor (1.3.2)
+    thor (1.4.0)
     timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)