diff --git a/testapps/rails2app/Gemfile b/testapps/rails2app/Gemfile
index 7f5011f..74bf0c1 100644
--- a/testapps/rails2app/Gemfile
+++ b/testapps/rails2app/Gemfile
@@ -1,6 +1,6 @@
 source 'http://rubygems.org'
 
-gem 'rails', '2.3.14'
+gem 'rails', '7.0.3'
 gem 'excelinator', :path => '../..'
 gem 'fastercsv'
 gem 'spreadsheet'
diff --git a/testapps/rails2app/Gemfile.lock b/testapps/rails2app/Gemfile.lock
index d09c88d..567762b 100644
--- a/testapps/rails2app/Gemfile.lock
+++ b/testapps/rails2app/Gemfile.lock
@@ -2,35 +2,157 @@ PATH
   remote: ../..
   specs:
     excelinator (1.0.0)
-      fastercsv
-      spreadsheet (= 0.6.8)
+      spreadsheet
 
 GEM
   remote: http://rubygems.org/
   specs:
-    actionmailer (2.3.14)
-      actionpack (= 2.3.14)
-    actionpack (2.3.14)
-      activesupport (= 2.3.14)
-      rack (~> 1.1.0)
-    activerecord (2.3.14)
-      activesupport (= 2.3.14)
-    activeresource (2.3.14)
-      activesupport (= 2.3.14)
-    activesupport (2.3.14)
+    actioncable (7.0.3)
+      actionpack (= 7.0.3)
+      activesupport (= 7.0.3)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailbox (7.0.3)
+      actionpack (= 7.0.3)
+      activejob (= 7.0.3)
+      activerecord (= 7.0.3)
+      activestorage (= 7.0.3)
+      activesupport (= 7.0.3)
+      mail (>= 2.7.1)
+      net-imap
+      net-pop
+      net-smtp
+    actionmailer (7.0.3)
+      actionpack (= 7.0.3)
+      actionview (= 7.0.3)
+      activejob (= 7.0.3)
+      activesupport (= 7.0.3)
+      mail (~> 2.5, >= 2.5.4)
+      net-imap
+      net-pop
+      net-smtp
+      rails-dom-testing (~> 2.0)
+    actionpack (7.0.3)
+      actionview (= 7.0.3)
+      activesupport (= 7.0.3)
+      rack (~> 2.0, >= 2.2.0)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.2.0)
+    actiontext (7.0.3)
+      actionpack (= 7.0.3)
+      activerecord (= 7.0.3)
+      activestorage (= 7.0.3)
+      activesupport (= 7.0.3)
+      globalid (>= 0.6.0)
+      nokogiri (>= 1.8.5)
+    actionview (7.0.3)
+      activesupport (= 7.0.3)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    activejob (7.0.3)
+      activesupport (= 7.0.3)
+      globalid (>= 0.3.6)
+    activemodel (7.0.3)
+      activesupport (= 7.0.3)
+    activerecord (7.0.3)
+      activemodel (= 7.0.3)
+      activesupport (= 7.0.3)
+    activestorage (7.0.3)
+      actionpack (= 7.0.3)
+      activejob (= 7.0.3)
+      activerecord (= 7.0.3)
+      activesupport (= 7.0.3)
+      marcel (~> 1.0)
+      mini_mime (>= 1.1.0)
+    activesupport (7.0.3)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+    builder (3.2.4)
+    concurrent-ruby (1.1.10)
+    crass (1.0.6)
+    digest (3.1.0)
+    erubi (1.10.0)
     fastercsv (1.5.4)
-    rack (1.1.3)
-    rails (2.3.14)
-      actionmailer (= 2.3.14)
-      actionpack (= 2.3.14)
-      activerecord (= 2.3.14)
-      activeresource (= 2.3.14)
-      activesupport (= 2.3.14)
-      rake (>= 0.8.3)
-    rake (0.9.2.2)
+    globalid (1.0.0)
+      activesupport (>= 5.0)
+    i18n (1.10.0)
+      concurrent-ruby (~> 1.0)
+    loofah (2.18.0)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    marcel (1.0.2)
+    method_source (1.0.0)
+    mini_mime (1.1.2)
+    mini_portile2 (2.8.0)
+    minitest (5.16.0)
+    net-imap (0.2.3)
+      digest
+      net-protocol
+      strscan
+    net-pop (0.1.1)
+      digest
+      net-protocol
+      timeout
+    net-protocol (0.1.3)
+      timeout
+    net-smtp (0.3.1)
+      digest
+      net-protocol
+      timeout
+    nio4r (2.5.8)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    racc (1.6.0)
+    rack (2.2.3.1)
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    rails (7.0.3)
+      actioncable (= 7.0.3)
+      actionmailbox (= 7.0.3)
+      actionmailer (= 7.0.3)
+      actionpack (= 7.0.3)
+      actiontext (= 7.0.3)
+      actionview (= 7.0.3)
+      activejob (= 7.0.3)
+      activemodel (= 7.0.3)
+      activerecord (= 7.0.3)
+      activestorage (= 7.0.3)
+      activesupport (= 7.0.3)
+      bundler (>= 1.15.0)
+      railties (= 7.0.3)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.4.3)
+      loofah (~> 2.3)
+    railties (7.0.3)
+      actionpack (= 7.0.3)
+      activesupport (= 7.0.3)
+      method_source
+      rake (>= 12.2)
+      thor (~> 1.0)
+      zeitwerk (~> 2.5)
+    rake (13.0.6)
     ruby-ole (1.2.11.3)
     spreadsheet (0.6.8)
       ruby-ole (>= 1.0)
+    strscan (3.0.3)
+    thor (1.2.1)
+    timeout (0.3.0)
+    tzinfo (2.0.4)
+      concurrent-ruby (~> 1.0)
+    websocket-driver (0.7.5)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.5)
+    zeitwerk (2.6.0)
 
 PLATFORMS
   ruby
@@ -38,5 +160,5 @@ PLATFORMS
 DEPENDENCIES
   excelinator!
   fastercsv
-  rails (= 2.3.14)
+  rails (= 7.0.3)
   spreadsheet