diff --git a/Gemfile.lock b/Gemfile.lock
index a5eac75f01..8f84a2885c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,65 +13,71 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
+    actioncable (7.0.4.3)
+      actionpack (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailbox (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activestorage (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
+    actionmailbox (7.0.4.3)
+      actionpack (= 7.0.4.3)
+      activejob (= 7.0.4.3)
+      activerecord (= 7.0.4.3)
+      activestorage (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
       mail (>= 2.7.1)
-    actionmailer (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      actionview (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
+      net-imap
+      net-pop
+      net-smtp
+    actionmailer (7.0.4.3)
+      actionpack (= 7.0.4.3)
+      actionview (= 7.0.4.3)
+      activejob (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
       mail (~> 2.5, >= 2.5.4)
+      net-imap
+      net-pop
+      net-smtp
       rails-dom-testing (~> 2.0)
-    actionpack (6.1.7.3)
-      actionview (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      rack (~> 2.0, >= 2.0.9)
+    actionpack (7.0.4.3)
+      actionview (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
+      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 (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activestorage (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
+    actiontext (7.0.4.3)
+      actionpack (= 7.0.4.3)
+      activerecord (= 7.0.4.3)
+      activestorage (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
+      globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (6.1.7.3)
-      activesupport (= 6.1.7.3)
+    actionview (7.0.4.3)
+      activesupport (= 7.0.4.3)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (6.1.7.3)
-      activesupport (= 6.1.7.3)
+    activejob (7.0.4.3)
+      activesupport (= 7.0.4.3)
       globalid (>= 0.3.6)
-    activemodel (6.1.7.3)
-      activesupport (= 6.1.7.3)
-    activerecord (6.1.7.3)
-      activemodel (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-    activestorage (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
+    activemodel (7.0.4.3)
+      activesupport (= 7.0.4.3)
+    activerecord (7.0.4.3)
+      activemodel (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
+    activestorage (7.0.4.3)
+      actionpack (= 7.0.4.3)
+      activejob (= 7.0.4.3)
+      activerecord (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
       marcel (~> 1.0)
       mini_mime (>= 1.1.0)
-    activesupport (6.1.7.3)
+    activesupport (7.0.4.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-      zeitwerk (~> 2.3)
     addressable (2.8.2)
       public_suffix (>= 2.0.2, < 6.0)
     administrate-field-image (1.2.0)
@@ -179,7 +185,7 @@ GEM
     kgio (2.11.4)
     launchy (2.5.2)
       addressable (~> 2.8)
-    loofah (2.19.1)
+    loofah (2.20.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.8.1)
@@ -202,7 +208,7 @@ GEM
       timeout
     net-smtp (0.3.3)
       net-protocol
-    nio4r (2.5.8)
+    nio4r (2.5.9)
     nokogiri (1.14.3)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
@@ -220,21 +226,20 @@ GEM
     rack-test (2.1.0)
       rack (>= 1.3)
     rack-timeout (0.6.3)
-    rails (6.1.7.3)
-      actioncable (= 6.1.7.3)
-      actionmailbox (= 6.1.7.3)
-      actionmailer (= 6.1.7.3)
-      actionpack (= 6.1.7.3)
-      actiontext (= 6.1.7.3)
-      actionview (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activemodel (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activestorage (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
+    rails (7.0.4.3)
+      actioncable (= 7.0.4.3)
+      actionmailbox (= 7.0.4.3)
+      actionmailer (= 7.0.4.3)
+      actionpack (= 7.0.4.3)
+      actiontext (= 7.0.4.3)
+      actionview (= 7.0.4.3)
+      activejob (= 7.0.4.3)
+      activemodel (= 7.0.4.3)
+      activerecord (= 7.0.4.3)
+      activestorage (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
       bundler (>= 1.15.0)
-      railties (= 6.1.7.3)
-      sprockets-rails (>= 2.0.0)
+      railties (= 7.0.4.3)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -243,12 +248,13 @@ GEM
     rails-i18n (7.0.6)
       i18n (>= 0.7, < 2)
       railties (>= 6.0.0, < 8)
-    railties (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
+    railties (7.0.4.3)
+      actionpack (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
       method_source
       rake (>= 12.2)
       thor (~> 1.0)
+      zeitwerk (~> 2.5)
     rainbow (3.1.1)
     raindrops (0.20.1)
     rake (13.0.6)
diff --git a/gemfiles/rails70.gemfile b/gemfiles/rails70.gemfile
index 6c0c785af8..0980d9cdc5 100644
--- a/gemfiles/rails70.gemfile
+++ b/gemfiles/rails70.gemfile
@@ -12,7 +12,7 @@ gem "pundit"
 gem "redcarpet"
 gem "sentry-raven"
 gem "unicorn"
-gem "rails", "~> 6.1"
+gem "rails", "~> 7.0"
 
 group :development, :test do
   gem "appraisal"
diff --git a/lib/generators/administrate/routes/routes_generator.rb b/lib/generators/administrate/routes/routes_generator.rb
index e352f0d0d5..a92b236259 100644
--- a/lib/generators/administrate/routes/routes_generator.rb
+++ b/lib/generators/administrate/routes/routes_generator.rb
@@ -7,6 +7,7 @@
 require "rails/generators/base"
 require "administrate/generator_helpers"
 require "administrate/namespace"
+require "generators/administrate/test_record"
 
 module Administrate
   module Generators
@@ -60,7 +61,10 @@ def valid_dashboard_models
       end
 
       def database_models
-        ActiveRecord::Base.descendants.reject(&:abstract_class?)
+        ActiveRecord::Base.descendants.
+          reject(&:abstract_class?).
+          reject { |k| k < Administrate::Generators::TestRecord }.
+          sort_by(&:to_s)
       end
 
       def invalid_dashboard_models
diff --git a/lib/generators/administrate/test_record.rb b/lib/generators/administrate/test_record.rb
new file mode 100644
index 0000000000..5b6a9cc404
--- /dev/null
+++ b/lib/generators/administrate/test_record.rb
@@ -0,0 +1,21 @@
+module Administrate
+  module Generators
+    # This class serves only to work around a strange behaviour in Rails 7
+    # with Ruby 3.
+    #
+    # After running the spec for DashboardGenerator, the fake models that
+    # it generates (eg: Foo, Shipment) linger around despite being removed
+    # explicitly. This causes RouteGenerator to take them into
+    # account and generate routes for them, which its spec doesn't expect,
+    # causing a spec failure.
+    #
+    # To avoid this, the spec for DashboardGenerator defines its fake models
+    # as children of TestRecord. Then RoutesGenerator explicitly filters
+    # child classes of TestRecord when figuring out what models exist.
+    #
+    # Discussion at https://github.com/thoughtbot/administrate/pull/2324
+    class TestRecord < ApplicationRecord
+      self.abstract_class = true
+    end
+  end
+end
diff --git a/spec/administrate/views/fields/select/_edit_spec.rb b/spec/administrate/views/fields/select/_edit_spec.rb
index 01b11a7421..b11677acfa 100644
--- a/spec/administrate/views/fields/select/_edit_spec.rb
+++ b/spec/administrate/views/fields/select/_edit_spec.rb
@@ -36,6 +36,7 @@ def build_template
     Object.new.tap do |template|
       template.extend ActionView::Helpers::FormHelper
       template.extend ActionView::Helpers::FormOptionsHelper
+      template.extend ActionView::Helpers::FormTagHelper
     end
   end
 end
diff --git a/spec/administrate/views/fields/url/_form_spec.rb b/spec/administrate/views/fields/url/_form_spec.rb
index 3e0662c432..2c739a62a6 100644
--- a/spec/administrate/views/fields/url/_form_spec.rb
+++ b/spec/administrate/views/fields/url/_form_spec.rb
@@ -2,7 +2,7 @@
 require "administrate/field/url"
 
 describe "fields/url/_form", type: :view do
-  it "displays the resource name" do
+  it "provides the correct name for the field" do
     product = build(:product, image_url: nil)
     url = instance_double(
       "Administrate::Field::Url",
@@ -31,6 +31,7 @@ def build_template
     Object.new.tap do |template|
       template.extend ActionView::Helpers::FormHelper
       template.extend ActionView::Helpers::FormOptionsHelper
+      template.extend ActionView::Helpers::FormTagHelper
     end
   end
 end
diff --git a/spec/generators/dashboard_generator_spec.rb b/spec/generators/dashboard_generator_spec.rb
index f9cc1933bc..924c939e09 100644
--- a/spec/generators/dashboard_generator_spec.rb
+++ b/spec/generators/dashboard_generator_spec.rb
@@ -1,5 +1,6 @@
 require "rails_helper"
 require "generators/administrate/dashboard/dashboard_generator"
+require "generators/administrate/test_record"
 
 describe Administrate::Generators::DashboardGenerator, :generator do
   around do |example|
@@ -25,7 +26,7 @@
             create_table(:foos) { |t| t.timestamps null: false }
           end
 
-          class Foo < ApplicationRecord
+          class Foo < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -47,7 +48,7 @@ class Foo < ApplicationRecord
             create_table(:foos) { |t| t.string :name }
           end
 
-          class Foo < ApplicationRecord
+          class Foo < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -72,7 +73,7 @@ class Foo < ApplicationRecord
             end
           end
 
-          class Foo < ApplicationRecord
+          class Foo < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -92,7 +93,7 @@ class Foo < ApplicationRecord
             create_table(:foos) { |t| t.inet :ip_address }
           end
 
-          class Foo < ApplicationRecord
+          class Foo < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -124,7 +125,7 @@ class Foo < ApplicationRecord
             end
           end
 
-          class InventoryItem < ApplicationRecord
+          class InventoryItem < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -148,7 +149,7 @@ class InventoryItem < ApplicationRecord
           end
         end
 
-        class Shipment < ApplicationRecord
+        class Shipment < Administrate::Generators::TestRecord
           enum status: %i[ready processing shipped]
           reset_column_information
         end
@@ -169,7 +170,7 @@ class Shipment < ApplicationRecord
           end
         end
 
-        class Shipment < ApplicationRecord
+        class Shipment < Administrate::Generators::TestRecord
           enum status: %i[ready processing shipped]
           reset_column_information
         end
@@ -195,7 +196,7 @@ class Shipment < ApplicationRecord
             create_table(:users) { |t| t.boolean :active }
           end
 
-          class User < ApplicationRecord
+          class User < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -220,7 +221,7 @@ class User < ApplicationRecord
             end
           end
 
-          class Event < ApplicationRecord
+          class Event < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -241,7 +242,7 @@ class Event < ApplicationRecord
           ActiveRecord::Schema.define do
             create_table(:comments) { |t| t.references :post }
           end
-          class Comment < ApplicationRecord
+          class Comment < Administrate::Generators::TestRecord
             belongs_to :post
           end
 
@@ -263,7 +264,7 @@ class Comment < ApplicationRecord
               t.references :commentable, polymorphic: true
             end
           end
-          class Comment < ApplicationRecord
+          class Comment < Administrate::Generators::TestRecord
             belongs_to :commentable, polymorphic: true
           end
 
@@ -289,12 +290,12 @@ class Comment < ApplicationRecord
             end
           end
 
-          class Account < ApplicationRecord
+          class Account < Administrate::Generators::TestRecord
             reset_column_information
             has_one :profile
           end
 
-          class Ticket < ApplicationRecord
+          class Ticket < Administrate::Generators::TestRecord
             reset_column_information
             belongs_to :account
           end
@@ -316,7 +317,7 @@ class Ticket < ApplicationRecord
               create_table :accounts
             end
 
-            class Account < ApplicationRecord
+            class Account < Administrate::Generators::TestRecord
               reset_column_information
               attribute :tmp_attribute, :boolean
             end
@@ -342,7 +343,7 @@ class Account < ApplicationRecord
             end
           end
 
-          class Foo < ApplicationRecord
+          class Foo < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -376,7 +377,7 @@ def table_attribute_limit
             end
           end
 
-          class Foo < ApplicationRecord
+          class Foo < Administrate::Generators::TestRecord
             reset_column_information
           end
 
@@ -402,7 +403,7 @@ class Foo < ApplicationRecord
           end
         end
 
-        class Foo < ApplicationRecord
+        class Foo < Administrate::Generators::TestRecord
           reset_column_information
         end
 
@@ -430,7 +431,7 @@ class Foo < ApplicationRecord
     it "subclasses Admin::ApplicationController by default" do
       begin
         ActiveRecord::Schema.define { create_table :foos }
-        class Foo < ApplicationRecord; end
+        class Foo < Administrate::Generators::TestRecord; end
 
         run_generator ["foo"]
         load file("app/controllers/admin/foos_controller.rb")
@@ -446,7 +447,7 @@ class Foo < ApplicationRecord; end
     it "uses the given namespace to create controllers" do
       begin
         ActiveRecord::Schema.define { create_table :foos }
-        class Foo < ApplicationRecord; end
+        class Foo < Administrate::Generators::TestRecord; end
         module Manager
           class ApplicationController < Administrate::ApplicationController; end
         end
diff --git a/spec/generators/routes_generator_spec.rb b/spec/generators/routes_generator_spec.rb
index baa74e4cd3..ef0b5fe019 100644
--- a/spec/generators/routes_generator_spec.rb
+++ b/spec/generators/routes_generator_spec.rb
@@ -120,6 +120,6 @@ class ModelWithoutDBTable < ApplicationRecord; end
 
     run_generator
 
-    expect(routes).to contain('root to: "customers#index')
+    expect(routes).to contain('root to: "countries#index')
   end
 end
diff --git a/spec/support/field_matchers.rb b/spec/support/field_matchers.rb
index 64b81d2f65..b110c48ae8 100644
--- a/spec/support/field_matchers.rb
+++ b/spec/support/field_matchers.rb
@@ -5,13 +5,12 @@ def should_permit_param(expected_param, for_attribute:, on_model:)
       resource_class: on_model,
     )
 
-    if Rails::VERSION::MAJOR <= 6
-      permitted_param = if permitted_param.respond_to?(:transform_keys)
-                          permitted_param.deep_transform_keys(&:to_s)
-                        else
-                          permitted_param.to_s
-                        end
-    end
+    permitted_param =
+      if permitted_param.respond_to?(:transform_keys)
+        permitted_param.deep_transform_keys(&:to_s)
+      else
+        permitted_param.to_s
+      end
 
     expect(permitted_param).to eq(expected_param)
   end