diff --git a/Gemfile.lock b/Gemfile.lock
index 933d3b8..b5c517d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
       rake (>= 0.8.0)
     ruby-progressbar (1.13.0)
     rubyzip (2.4.1)
-    thor (1.3.2)
+    thor (1.4.0)
 
 PLATFORMS
   ruby