diff --git a/Gemfile.lock b/Gemfile.lock
index b97e14c..9cd72c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -273,7 +273,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.8.0)
     uri (1.0.2)
-    webrick (1.9.0)
+    webrick (1.9.1)
 
 PLATFORMS
   x86_64-linux