diff --git a/Gemfile.lock b/Gemfile.lock
index 9dac3c6..b05d0c5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -167,7 +167,7 @@ GEM
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (2.6.0)
-    webrick (1.9.0)
+    webrick (1.9.1)
 
 PLATFORMS
   aarch64-linux