diff --git a/Gemfile.lock b/Gemfile.lock
index b654b9c..b09752e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,6 +77,7 @@ GEM
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
     unicode-display_width (1.7.0)
+    webrick (1.7.0)
     yell (2.2.2)
 
 PLATFORMS
@@ -87,6 +88,7 @@ DEPENDENCIES
   jekyll
   jekyll-redirect-from
   tzinfo-data
+  webrick
 
 BUNDLED WITH
-   2.2.26
+   2.2.32