diff --git a/Gemfile b/Gemfile
index 2bbeba0..83f3e61 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,5 +5,5 @@ source "https://rubygems.org"
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
 # gem "rails"
-gem 'selenium-webdriver', '~> 4.0.0.beta3'
-gem 'percy-selenium', '~> 1.0.0.pre.0'
+gem 'selenium-webdriver', '~> 4.0.0.0'
+gem 'percy-selenium', '~> 1.0.0.0.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index b912564..75280e6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,24 +1,22 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    childprocess (4.0.0)
-    percy-selenium (1.0.0.pre.0)
+    childprocess (4.1.0)
+    percy-selenium (1.0.0)
       selenium-webdriver (>= 4.0.0.beta1)
-    rexml (3.2.5)
-    rubyzip (2.3.0)
-    selenium-webdriver (4.0.0.beta3)
+    rexml (3.4.1)
+    rubyzip (2.4.1)
+    selenium-webdriver (4.0.0)
       childprocess (>= 0.5, < 5.0)
-      rexml (~> 3.2)
+      rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2)
-      websocket (~> 1.0)
-    websocket (1.2.9)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  percy-selenium (~> 1.0.0.pre.0)
-  selenium-webdriver (~> 4.0.0.beta3)
+  percy-selenium (~> 1.0.0.0.0)
+  selenium-webdriver (~> 4.0.0.0)
 
 BUNDLED WITH
-   1.17.2
+   1.17.3