diff --git a/Gemfile.lock b/Gemfile.lock
index bba7cf700..481e0f6c1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -162,7 +162,7 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
-    webrick (1.8.1)
+    webrick (1.9.1)
 
 PLATFORMS
   x86_64-linux