diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index d4e112376..d3c892b7b 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -261,7 +261,7 @@ GEM
     unf_ext (0.0.9.1)
     unicode-display_width (1.8.0)
     uri (0.13.0)
-    webrick (1.8.1)
+    webrick (1.9.0)
 
 PLATFORMS
   x86_64-linux