diff --git a/lib/ferrum/page.rb b/lib/ferrum/page.rb
index d8362af2..0e34ff23 100644
--- a/lib/ferrum/page.rb
+++ b/lib/ferrum/page.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "forwardable"
+require "pathname"
 require "ferrum/event"
 require "ferrum/mouse"
 require "ferrum/keyboard"
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 303b7a75..9f94527b 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,6 +2,7 @@
 
 require "bundler/setup"
 require "rspec"
+require "pathname"
 
 PROJECT_ROOT = File.expand_path("..", __dir__)
 %w[/lib /spec].each { |p| $LOAD_PATH.unshift(p) }