diff --git a/Gemfile b/Gemfile
index 2fdc3df4..576ad34e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ end
 
 gem 'wdm', '>= 0.1.1' if Gem.win_platform?
 
-gem "webrick", "~> 1.8"
+gem "webrick", "~> 1.9"
 
 gem 'html-proofer', "~> 3.19.4"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 9b80d350..17b2b95a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -277,7 +277,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.8.0)
     uri (0.13.0)
-    webrick (1.8.1)
+    webrick (1.9.0)
     yell (2.2.2)
 
 PLATFORMS
@@ -289,7 +289,7 @@ DEPENDENCIES
   github-pages (= 232)
   html-proofer (~> 3.19.4)
   json
-  webrick (~> 1.8)
+  webrick (~> 1.9)
 
 BUNDLED WITH
    2.5.6