diff --git a/Gemfile.lock b/Gemfile.lock
index 6731c38..7f3f654 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    thor (0.20.3)
+    thor (1.4.0)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.5)