diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 0f8cfd4fa..fba2b6b05 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -259,7 +259,7 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.8.0)
-    webrick (1.8.2)
+    webrick (1.9.0)
 
 PLATFORMS
   ruby