diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index c610f6900..6e6c334dc 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -27,7 +27,7 @@ jobs:
         ruby-version: ['jruby-head']
         db: ['mysql2']
         test_targets: ["rails:test_mysql2"]
-        ar_version: ["7-2-stable"]
+        ar_version: ["8-0-stable"]
         prepared_statements: ['false', 'true']
         driver: ['MySQL']
 
@@ -84,7 +84,7 @@ jobs:
         ruby-version: [ 'jruby-head' ]
         db: [ 'postgresql' ]
         test_targets: [ "rails:test_postgresql" ]
-        ar_version: ["7-2-stable"]
+        ar_version: ["8-0-stable"]
         prepared_statements: [ 'false', 'true' ]
 
     services:
@@ -139,7 +139,7 @@ jobs:
         ruby-version: ['jruby-head']
         db: ['sqlite3']
         test_targets: ["rails:test_sqlite3"]
-        ar_version: ["7-2-stable"]
+        ar_version: ["8-0-stable"]
 
     env:
       DB: ${{ matrix.db }}
diff --git a/test/rails/monkey_patches.rb b/test/rails/monkey_patches.rb
deleted file mode 100644
index db3027d3f..000000000
--- a/test/rails/monkey_patches.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-require 'active_support/testing/strict_warnings'
-
-# This module flags methods in rails tests and blows up ours
-module ActiveSupport
-  module RaiseWarnings # :nodoc:
-    begin
-      allowed = remove_const(:ALLOWED_WARNINGS)
-      const_set(:ALLOWED_WARNINGS, Regexp.union(allowed, /previous definition of/))
-    end
-  end
-end
\ No newline at end of file