diff --git a/Gemfile b/Gemfile
index 8b3ec3c..3b4f305 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ ruby '2.3.1'
 gem 'nokogiri'
 gem 'mechanize'
 gem 'rake'
-gem 'rack', '~>1.1'
+gem 'rack', '~>2.2'
 gem 'rspec', :require => 'spec'
 # gem "rails"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index e7ac105..528da8d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,26 +1,53 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    mechanize (1.0.0)
-      nokogiri (>= 1.2.1)
-    mini_portile (0.5.2)
-    nokogiri ~> 1.8.1
-      mini_portile (~> 0.5.0)
-    nokogiri ~> 1.8.1
-      mini_portile (~> 0.5.0)
-    rack (1.5.4)
+    connection_pool (2.2.5)
+    domain_name (0.5.20190701)
+      unf (>= 0.0.5, < 1.0.0)
+    http-cookie (1.0.8)
+      domain_name (~> 0.5)
+    java (0.0.2)
+    logger (1.5.3)
+    mechanize (2.7.7)
+      domain_name (~> 0.5, >= 0.5.1)
+      http-cookie (~> 1.0)
+      mime-types (>= 1.17.2)
+      net-http-digest_auth (~> 1.1, >= 1.1.1)
+      net-http-persistent (>= 2.5.2)
+      nokogiri (~> 1.6)
+      ntlm-http (~> 0.1, >= 0.1.1)
+      webrick (~> 1.7)
+      webrobots (>= 0.0.9, < 0.2)
+    mime-types (3.6.0)
+      logger
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2025.0304)
+    mini_portile2 (2.4.0)
+    net-http-digest_auth (1.4.1)
+    net-http-persistent (4.0.1)
+      connection_pool (~> 2.2)
+    nokogiri (1.10.10)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.10-java)
+    ntlm-http (0.1.1)
+    rack (2.2.13)
     rake (10.1.0)
     rspec (1.3.2)
     ruby-processing (2.6.7)
+    unf (0.2.0)
+    unf (0.2.0-java)
+    webrick (1.7.0)
+    webrobots (0.1.2)
 
 PLATFORMS
   java
   ruby
 
 DEPENDENCIES
+  java
   mechanize
   nokogiri
-  rack (~> 1.1)
+  rack (~> 2.2)
   rake
   rspec
-  ruby-processing
+  ruby-processing (~> 2.6.7)