diff --git a/Gemfile.lock b/Gemfile.lock
index d033e97..320533b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     plist (3.4.0)
     rainbow (3.0.0)
-    thor (0.20.3)
+    thor (1.4.0)
 
 PLATFORMS
   ruby