diff --git a/Gemfile b/Gemfile
index 6656159..91e69af 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,4 +25,4 @@ end
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
-gem "webrick", "~> 1.8"
+gem "webrick", "~> 1.9"
diff --git a/Gemfile.lock b/Gemfile.lock
index 18505a4..a76f594 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -264,7 +264,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.8.0)
     uri (0.13.1)
-    webrick (1.8.2)
+    webrick (1.9.1)
 
 PLATFORMS
   ruby
@@ -276,7 +276,7 @@ DEPENDENCIES
   jekyll-seo-tag (~> 2.8)
   jekyll-sitemap (~> 1.4)
   tzinfo-data
-  webrick (~> 1.8)
+  webrick (~> 1.9)
 
 BUNDLED WITH
    2.1.4