diff --git a/Gemfile.lock b/Gemfile.lock
index 6e5954f..81e6491 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -261,7 +261,7 @@ GEM
     unicode-display_width (2.1.0)
     url_mount (0.2.1)
       rack
-    warning (1.2.0)
+    warning (1.2.1)
     xpath (3.2.0)
       nokogiri (~> 1.8)
     yard (0.9.26)