diff --git a/Gemfile b/Gemfile
index 22d0dbb..ecc2060 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,4 +5,4 @@ gemspec
 
 gem 'rails', ENV.fetch('RAILS_VERSION')
 gem 'pg'
-gem 'sqlite3'
+gem 'sqlite3', '~> 1.3'
diff --git a/active_record_union.gemspec b/active_record_union.gemspec
index a945f75..dc11cd4 100644
--- a/active_record_union.gemspec
+++ b/active_record_union.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/}) + spec.files.grep(%r{^bin/})
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "activerecord", ">= 4.0"
+  spec.add_dependency "activerecord", ">= 7.0"
 
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake"
diff --git a/spec/union_spec.rb b/spec/union_spec.rb
index f2020e1..431b02f 100644
--- a/spec/union_spec.rb
+++ b/spec/union_spec.rb
@@ -41,15 +41,9 @@
     end
 
     def bind_values_from_relation(relation)
-      if ActiveRecord.gem_version >= Gem::Version.new('5.2.0.beta2')
-        relation.arel_table.class.engine.connection.visitor.accept(
-          relation.arel.ast, Arel::Collectors::Bind.new
-        ).value.map(&:value)
-      elsif ActiveRecord::VERSION::MAJOR >= 5
-        relation.bound_attributes.map { |a| a.value_for_database }
-      else
-        (relation.arel.bind_values + relation.bind_values).map { |_column, value| value }
-      end
+      relation.arel_table.class.engine.connection.visitor.accept(
+        relation.arel.ast, Arel::Collectors::Bind.new
+      ).value.map(&:value)
     end
 
     it "binds values properly" do
@@ -72,16 +66,16 @@ def bind_values_from_relation(relation)
       bind_values = bind_values_from_relation union
       expect(bind_values).to eq([true, 11])
 
-
       expect(union.to_sql.squish).to eq(
-        "SELECT \"users\".* FROM ( SELECT \"users\".* FROM \"users\" INNER JOIN \"posts\" ON \"posts\".\"user_id\" = \"users\".\"id\" AND \"posts\".\"draft\" = 't' UNION SELECT \"users\".* FROM \"users\" WHERE \"users\".\"id\" = 11 ) \"users\""
+        "SELECT \"users\".* FROM ( SELECT \"users\".* FROM \"users\" INNER JOIN \"posts\" ON \"posts\".\"draft\" = 1 AND \"posts\".\"user_id\" = \"users\".\"id\" UNION SELECT \"users\".* FROM \"users\" WHERE \"users\".\"id\" = 11 ) \"users\""
       )
       expect{union.to_a}.to_not raise_error
     end
 
     it "doesn't repeat default scopes" do
       expect(Time).to receive(:now) { Time.utc(2014, 7, 24, 0, 0, 0) }
-      sql_now = "2014-07-24 00:00:00#{".000000" if ActiveRecord::VERSION::MAJOR < 5}"
+
+      sql_now = "2014-07-24 00:00:00"
 
       class PublishedPost < ActiveRecord::Base
         self.table_name = "posts"
@@ -105,15 +99,10 @@ class PublishedPost < ActiveRecord::Base
 
       context "in SQLite" do
         it "lets ORDER BY in query subselects throw a syntax error" do
-          if ([ActiveRecord::VERSION::MAJOR, ActiveRecord::VERSION::MINOR] <=> [5, 2]) >= 0
-            expect(union.to_sql.squish).to eq(
-              "SELECT \"posts\".* FROM ( SELECT \"posts\".* FROM \"posts\" WHERE \"posts\".\"user_id\" = 1 ORDER BY \"posts\".\"created_at\" ASC UNION SELECT \"posts\".* FROM \"posts\" WHERE (created_at > '2014-07-19 00:00:00') ORDER BY \"posts\".\"created_at\" ASC ) \"posts\" ORDER BY \"created_at\" ASC"
-            )
-          else
-            expect(union.to_sql.squish).to eq(
-              "SELECT \"posts\".* FROM ( SELECT \"posts\".* FROM \"posts\" WHERE \"posts\".\"user_id\" = 1 ORDER BY \"posts\".\"created_at\" ASC UNION SELECT \"posts\".* FROM \"posts\" WHERE (created_at > '#{SQL_TIME}') ORDER BY \"posts\".\"created_at\" ASC ) \"posts\" ORDER BY \"posts\".\"created_at\" ASC"
-            )
-          end
+          expect(union.to_sql.squish).to eq(
+            "SELECT \"posts\".* FROM ( SELECT \"posts\".* FROM \"posts\" WHERE \"posts\".\"user_id\" = 1 ORDER BY \"posts\".\"created_at\" ASC UNION SELECT \"posts\".* FROM \"posts\" WHERE (created_at > '2014-07-19 00:00:00') ORDER BY \"posts\".\"created_at\" ASC ) \"posts\" ORDER BY \"created_at\" ASC"
+          )
+
           expect{union.to_a}.to raise_error(ActiveRecord::StatementInvalid)
         end
       end
@@ -121,15 +110,10 @@ class PublishedPost < ActiveRecord::Base
       context "in Postgres" do
         it "wraps query subselects in parentheses to allow ORDER BY clauses" do
           Databases.with_postgres do
-            if ([ActiveRecord::VERSION::MAJOR, ActiveRecord::VERSION::MINOR] <=> [5, 2]) >= 0
-              expect(union.to_sql.squish).to eq(
-                "SELECT \"posts\".* FROM ( (SELECT \"posts\".* FROM \"posts\" WHERE \"posts\".\"user_id\" = 1 ORDER BY \"posts\".\"created_at\" ASC) UNION (SELECT \"posts\".* FROM \"posts\" WHERE (created_at > '2014-07-19 00:00:00') ORDER BY \"posts\".\"created_at\" ASC) ) \"posts\" ORDER BY \"created_at\" ASC"
-              )
-            else
-              expect(union.to_sql.squish).to eq(
-                "SELECT \"posts\".* FROM ( (SELECT \"posts\".* FROM \"posts\" WHERE \"posts\".\"user_id\" = 1 ORDER BY \"posts\".\"created_at\" ASC) UNION (SELECT \"posts\".* FROM \"posts\" WHERE (created_at > '#{SQL_TIME}') ORDER BY \"posts\".\"created_at\" ASC) ) \"posts\" ORDER BY \"posts\".\"created_at\" ASC"
-              )
-            end
+            expect(union.to_sql.squish).to eq(
+              "SELECT \"posts\".* FROM ( (SELECT \"posts\".* FROM \"posts\" WHERE \"posts\".\"user_id\" = 1 ORDER BY \"posts\".\"created_at\" ASC) UNION (SELECT \"posts\".* FROM \"posts\" WHERE (created_at > '2014-07-19 00:00:00') ORDER BY \"posts\".\"created_at\" ASC) ) \"posts\" ORDER BY \"created_at\" ASC"
+            )
+
             expect{union.to_a}.to_not raise_error
           end
         end
@@ -138,15 +122,10 @@ class PublishedPost < ActiveRecord::Base
       context "in MySQL" do
         it "wraps query subselects in parentheses to allow ORDER BY clauses" do
           Databases.with_mysql do
-            if ([ActiveRecord::VERSION::MAJOR, ActiveRecord::VERSION::MINOR] <=> [5, 2]) >= 0
-              expect(union.to_sql.squish).to eq(
-                "SELECT `posts`.* FROM ( (SELECT `posts`.* FROM `posts` WHERE `posts`.`user_id` = 1 ORDER BY `posts`.`created_at` ASC) UNION (SELECT `posts`.* FROM `posts` WHERE (created_at > '2014-07-19 00:00:00') ORDER BY `posts`.`created_at` ASC) ) `posts` ORDER BY `created_at` ASC"
-              )
-            else
-              expect(union.to_sql.squish).to eq(
-                "SELECT `posts`.* FROM ( (SELECT `posts`.* FROM `posts` WHERE `posts`.`user_id` = 1 ORDER BY `posts`.`created_at` ASC) UNION (SELECT `posts`.* FROM `posts` WHERE (created_at > '#{SQL_TIME}') ORDER BY `posts`.`created_at` ASC) ) `posts` ORDER BY `posts`.`created_at` ASC"
-              )
-            end
+            expect(union.to_sql.squish).to eq(
+              "SELECT `posts`.* FROM ( (SELECT `posts`.* FROM `posts` WHERE `posts`.`user_id` = 1 ORDER BY `posts`.`created_at` ASC) UNION (SELECT `posts`.* FROM `posts` WHERE (created_at > '2014-07-19 00:00:00') ORDER BY `posts`.`created_at` ASC) ) `posts` ORDER BY `created_at` ASC"
+            )
+
             expect{union.to_a}.to_not raise_error
           end
         end