diff --git a/Gemfile.lock b/Gemfile.lock
index 98e1f3b..dfeda87 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,7 +67,7 @@ GEM
     ruby-progressbar (1.10.1)
     ruby_dep (1.5.0)
     shellany (0.0.1)
-    thor (0.20.3)
+    thor (1.4.0)
     unicode-display_width (1.6.0)
 
 PLATFORMS