diff --git a/Gemfile.lock b/Gemfile.lock
index 98a84bc..e26f583 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,7 +90,7 @@ GEM
     slop (3.5.0)
     term-ansicolor (1.3.0)
       tins (~> 1.0)
-    thor (0.18.1)
+    thor (1.4.0)
     thread_safe (0.2.0)
       atomic (>= 1.1.7, < 2)
     tins (1.0.1)