diff --git a/Gemfile b/Gemfile
index 7b5377f..e3415c8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ source "https://rubygems.org"
 gemspec
 
 group :test do
-  gem "html-proofer", "~> 3.18"
+  gem "html-proofer", "~> 4.4"
 end
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
diff --git a/tools/test b/tools/test
index 83a9490..9fa02ad 100755
--- a/tools/test
+++ b/tools/test
@@ -62,9 +62,8 @@ main() {
 
   # test
   bundle exec htmlproofer "$SITE_DIR" \
-    --disable-external \
-    --check-html \
-    --allow_hash_href
+    --disable-external=true \
+    --ignore-urls "/^http:\/\/127.0.0.1/,/^http:\/\/0.0.0.0/,/^http:\/\/localhost/"
 }
 
 while (($#)); do