diff --git a/lib/carrierwave.rb b/lib/carrierwave.rb
index 89f2efbde..f02b831e0 100644
--- a/lib/carrierwave.rb
+++ b/lib/carrierwave.rb
@@ -3,6 +3,7 @@
 require 'active_support/core_ext/object/try'
 require 'active_support/core_ext/class/attribute'
 require 'active_support/concern'
+require 'active_support/deprecation'
 
 module CarrierWave
 
@@ -21,6 +22,10 @@ def clean_cached_files!(seconds=60*60*24)
     def tmp_path
       @tmp_path ||= File.expand_path(File.join('..', 'tmp'), root)
     end
+
+    def deprecator
+      @deprecator ||= ActiveSupport::Deprecation.new("#{CarrierWave::VERSION.split('.')[0].to_i + 1}.0", "CarrierWave")
+    end
   end
 
 end
@@ -64,6 +69,10 @@ class Railtie < Rails::Railtie
         end
       end
 
+      initializer "carrierwave.deprecator" do |app|
+        app.deprecators[:carrierwave] = CarrierWave.deprecator
+      end
+
       config.before_eager_load do
         CarrierWave::Storage::Fog.eager_load
       end
diff --git a/lib/carrierwave/processing/rmagick.rb b/lib/carrierwave/processing/rmagick.rb
index 3f8a75065..ed753e870 100644
--- a/lib/carrierwave/processing/rmagick.rb
+++ b/lib/carrierwave/processing/rmagick.rb
@@ -408,7 +408,7 @@ def create_info_block(options)
       proc do |img|
         options.each do |k, v|
           if v.is_a?(String) && (matches = v.match(/^["'](.+)["']/))
-            ActiveSupport::Deprecation.warn "Passing quoted strings like #{v} to #manipulate! is deprecated, pass them without quoting."
+            CarrierWave.deprecator.warn "Passing quoted strings like #{v} to #manipulate! is deprecated, pass them without quoting."
             v = matches[1]
           end
           img.public_send(:"#{k}=", v)
diff --git a/lib/carrierwave/uploader/cache.rb b/lib/carrierwave/uploader/cache.rb
index 28f2f77e1..36cab2b3f 100644
--- a/lib/carrierwave/uploader/cache.rb
+++ b/lib/carrierwave/uploader/cache.rb
@@ -91,9 +91,9 @@ def cache_stored_file!
       end
 
       def sanitized_file
-        ActiveSupport::Deprecation.warn('#sanitized_file is deprecated, use #file instead.')
         file
       end
+      CarrierWave.deprecator.deprecate_methods(self, sanitized_file: :file)
 
       ##
       # Returns a String which uniquely identifies the currently cached file for later retrieval
diff --git a/lib/carrierwave/uploader/configuration.rb b/lib/carrierwave/uploader/configuration.rb
index de1c9fc22..dce36306e 100644
--- a/lib/carrierwave/uploader/configuration.rb
+++ b/lib/carrierwave/uploader/configuration.rb
@@ -157,19 +157,19 @@ def #{name}
         def add_deprecated_config(name)
           class_eval <<-RUBY, __FILE__, __LINE__ + 1
             def self.#{name}(value=nil)
-              ActiveSupport::Deprecation.warn "##{name} is deprecated and has no effect"
+              CarrierWave.deprecator.warn "##{name} is deprecated and has no effect"
             end
 
             def self.#{name}=(value)
-              ActiveSupport::Deprecation.warn "##{name} is deprecated and has no effect"
+              CarrierWave.deprecator.warn "##{name} is deprecated and has no effect"
             end
 
             def #{name}=(value)
-              ActiveSupport::Deprecation.warn "##{name} is deprecated and has no effect"
+              CarrierWave.deprecator.warn "##{name} is deprecated and has no effect"
             end
 
             def #{name}
-              ActiveSupport::Deprecation.warn "##{name} is deprecated and has no effect"
+              CarrierWave.deprecator.warn "##{name} is deprecated and has no effect"
             end
           RUBY
         end
diff --git a/lib/carrierwave/uploader/content_type_allowlist.rb b/lib/carrierwave/uploader/content_type_allowlist.rb
index 0a6d69947..1c8f22f1d 100644
--- a/lib/carrierwave/uploader/content_type_allowlist.rb
+++ b/lib/carrierwave/uploader/content_type_allowlist.rb
@@ -36,7 +36,7 @@ def content_type_allowlist
       def check_content_type_allowlist!(new_file)
         allowlist = content_type_allowlist
         if !allowlist && respond_to?(:content_type_whitelist) && content_type_whitelist
-          ActiveSupport::Deprecation.warn "#content_type_whitelist is deprecated, use #content_type_allowlist instead." unless instance_variable_defined?(:@content_type_whitelist_warned)
+          CarrierWave.deprecator.warn "#content_type_whitelist is deprecated, use #content_type_allowlist instead." unless instance_variable_defined?(:@content_type_whitelist_warned)
           @content_type_whitelist_warned = true
           allowlist = content_type_whitelist
         end
diff --git a/lib/carrierwave/uploader/content_type_denylist.rb b/lib/carrierwave/uploader/content_type_denylist.rb
index e76991465..7164b55d3 100644
--- a/lib/carrierwave/uploader/content_type_denylist.rb
+++ b/lib/carrierwave/uploader/content_type_denylist.rb
@@ -36,14 +36,14 @@ def content_type_denylist
       def check_content_type_denylist!(new_file)
         denylist = content_type_denylist
         if !denylist && respond_to?(:content_type_blacklist) && content_type_blacklist
-          ActiveSupport::Deprecation.warn "#content_type_blacklist is deprecated, use #content_type_denylist instead." unless instance_variable_defined?(:@content_type_blacklist_warned)
+          CarrierWave.deprecator.warn "#content_type_blacklist is deprecated, use #content_type_denylist instead." unless instance_variable_defined?(:@content_type_blacklist_warned)
           @content_type_blacklist_warned = true
           denylist = content_type_blacklist
         end
 
         return unless denylist
 
-        ActiveSupport::Deprecation.warn "Use of #content_type_denylist is deprecated for the security reason, use #content_type_allowlist instead to explicitly state what are safe to accept" unless instance_variable_defined?(:@content_type_denylist_warned)
+        CarrierWave.deprecator.warn "Use of #content_type_denylist is deprecated for the security reason, use #content_type_allowlist instead to explicitly state what are safe to accept" unless instance_variable_defined?(:@content_type_denylist_warned)
         @content_type_denylist_warned = true
 
         content_type = new_file.content_type
diff --git a/lib/carrierwave/uploader/extension_allowlist.rb b/lib/carrierwave/uploader/extension_allowlist.rb
index 0c0bdacd1..4a8e6f40b 100644
--- a/lib/carrierwave/uploader/extension_allowlist.rb
+++ b/lib/carrierwave/uploader/extension_allowlist.rb
@@ -39,7 +39,7 @@ def extension_allowlist
       def check_extension_allowlist!(new_file)
         allowlist = extension_allowlist
         if !allowlist && respond_to?(:extension_whitelist) && extension_whitelist
-          ActiveSupport::Deprecation.warn "#extension_whitelist is deprecated, use #extension_allowlist instead." unless instance_variable_defined?(:@extension_whitelist_warned)
+          CarrierWave.deprecator.warn "#extension_whitelist is deprecated, use #extension_allowlist instead." unless instance_variable_defined?(:@extension_whitelist_warned)
           @extension_whitelist_warned = true
           allowlist = extension_whitelist
         end
diff --git a/lib/carrierwave/uploader/extension_denylist.rb b/lib/carrierwave/uploader/extension_denylist.rb
index 738e1d876..3774117c4 100644
--- a/lib/carrierwave/uploader/extension_denylist.rb
+++ b/lib/carrierwave/uploader/extension_denylist.rb
@@ -39,14 +39,14 @@ def extension_denylist
       def check_extension_denylist!(new_file)
         denylist = extension_denylist
         if !denylist && respond_to?(:extension_blacklist) && extension_blacklist
-          ActiveSupport::Deprecation.warn "#extension_blacklist is deprecated, use #extension_denylist instead." unless instance_variable_defined?(:@extension_blacklist_warned)
+          CarrierWave.deprecator.warn "#extension_blacklist is deprecated, use #extension_denylist instead." unless instance_variable_defined?(:@extension_blacklist_warned)
           @extension_blacklist_warned = true
           denylist = extension_blacklist
         end
 
         return unless denylist
 
-        ActiveSupport::Deprecation.warn "Use of #extension_denylist is deprecated for the security reason, use #extension_allowlist instead to explicitly state what are safe to accept" unless instance_variable_defined?(:@extension_denylist_warned)
+        CarrierWave.deprecator.warn "Use of #extension_denylist is deprecated for the security reason, use #extension_allowlist instead to explicitly state what are safe to accept" unless instance_variable_defined?(:@extension_denylist_warned)
         @extension_denylist_warned = true
 
         extension = new_file.extension.to_s
diff --git a/spec/orm/activerecord_spec.rb b/spec/orm/activerecord_spec.rb
index 1e34dc8df..535656e42 100644
--- a/spec/orm/activerecord_spec.rb
+++ b/spec/orm/activerecord_spec.rb
@@ -278,7 +278,7 @@ def extension_allowlist
 
       context 'when validating denylist integrity' do
         before do
-          allow(ActiveSupport::Deprecation).to receive(:warn).with(/#extension_denylist/)
+          allow(CarrierWave.deprecator).to receive(:warn).with(/#extension_denylist/)
           @uploader.class_eval do
             def extension_denylist
               %w(jpg)
@@ -1327,7 +1327,7 @@ def extension_allowlist
 
       context 'when validating denylist integrity' do
         before do
-          allow(ActiveSupport::Deprecation).to receive(:warn).with(/#extension_denylist/)
+          allow(CarrierWave.deprecator).to receive(:warn).with(/#extension_denylist/)
           @uploader.class_eval do
             def extension_denylist
               %w(jpg)
diff --git a/spec/processing/rmagick_spec.rb b/spec/processing/rmagick_spec.rb
index c3fb97788..a73edf367 100644
--- a/spec/processing/rmagick_spec.rb
+++ b/spec/processing/rmagick_spec.rb
@@ -226,13 +226,13 @@
 
     it 'shows deprecation but still accepts strings enclosed with double quotes' do
       expect_any_instance_of(::Magick::Image::Info).to receive(:size=).once.with("200x200")
-      expect(ActiveSupport::Deprecation).to receive(:warn).with(any_args)
+      expect(CarrierWave.deprecator).to receive(:warn).with(any_args)
       instance.manipulate! :read => {:size => %{"200x200"}}
     end
 
     it 'shows deprecation but still accepts strings enclosed with single quotes' do
       expect_any_instance_of(::Magick::Image::Info).to receive(:size=).once.with("200x200")
-      expect(ActiveSupport::Deprecation).to receive(:warn).with(any_args)
+      expect(CarrierWave.deprecator).to receive(:warn).with(any_args)
       instance.manipulate! :read => {:size => %{'200x200'}}
     end
 
diff --git a/spec/uploader/content_type_allowlist_spec.rb b/spec/uploader/content_type_allowlist_spec.rb
index fd25a4890..a4b14c87c 100644
--- a/spec/uploader/content_type_allowlist_spec.rb
+++ b/spec/uploader/content_type_allowlist_spec.rb
@@ -93,7 +93,7 @@
       it "uses the whitelist but shows deprecation" do
         allow(uploader).to receive(:content_type_whitelist).and_return(['image/gif'])
 
-        expect(ActiveSupport::Deprecation).to receive(:warn).with('#content_type_whitelist is deprecated, use #content_type_allowlist instead.')
+        expect(CarrierWave.deprecator).to receive(:warn).with('#content_type_whitelist is deprecated, use #content_type_allowlist instead.')
         expect {
           uploader.cache!(bork_file)
         }.to raise_error(CarrierWave::IntegrityError)
diff --git a/spec/uploader/content_type_denylist_spec.rb b/spec/uploader/content_type_denylist_spec.rb
index 78b8346a8..f048a2fa4 100644
--- a/spec/uploader/content_type_denylist_spec.rb
+++ b/spec/uploader/content_type_denylist_spec.rb
@@ -31,7 +31,7 @@
         end
 
         it "shows up" do
-          expect(ActiveSupport::Deprecation).to receive(:warn).with('Use of #content_type_denylist is deprecated for the security reason, use #content_type_allowlist instead to explicitly state what are safe to accept')
+          expect(CarrierWave.deprecator).to receive(:warn).with('Use of #content_type_denylist is deprecated for the security reason, use #content_type_allowlist instead to explicitly state what are safe to accept')
           expect { uploader.cache!(ruby_file) }.to raise_error(CarrierWave::IntegrityError)
         end
       end
@@ -75,7 +75,7 @@
       it "uses the blacklist but shows deprecation" do
         allow(uploader).to receive(:content_type_blacklist).and_return(['image/png'])
 
-        expect(ActiveSupport::Deprecation).to receive(:warn).with('#content_type_blacklist is deprecated, use #content_type_denylist instead.')
+        expect(CarrierWave.deprecator).to receive(:warn).with('#content_type_blacklist is deprecated, use #content_type_denylist instead.')
         expect { uploader.cache!(ruby_file) }.to raise_error(CarrierWave::IntegrityError)
       end
 
diff --git a/spec/uploader/extension_allowlist_spec.rb b/spec/uploader/extension_allowlist_spec.rb
index f86337fed..36138bff5 100644
--- a/spec/uploader/extension_allowlist_spec.rb
+++ b/spec/uploader/extension_allowlist_spec.rb
@@ -120,7 +120,7 @@
       it "uses the whitelist but shows deprecation" do
         allow(@uploader).to receive(:extension_whitelist).and_return(%w(txt doc xls))
 
-        expect(ActiveSupport::Deprecation).to receive(:warn).with('#extension_whitelist is deprecated, use #extension_allowlist instead.')
+        expect(CarrierWave.deprecator).to receive(:warn).with('#extension_whitelist is deprecated, use #extension_allowlist instead.')
         expect {
           @uploader.cache!(File.open(file_path('test.jpg')))
         }.to raise_error(CarrierWave::IntegrityError)
diff --git a/spec/uploader/extension_denylist_spec.rb b/spec/uploader/extension_denylist_spec.rb
index 6a7160587..861257ce1 100644
--- a/spec/uploader/extension_denylist_spec.rb
+++ b/spec/uploader/extension_denylist_spec.rb
@@ -32,7 +32,7 @@
         end
 
         it "shows up" do
-          expect(ActiveSupport::Deprecation).to receive(:warn).with('Use of #extension_denylist is deprecated for the security reason, use #extension_allowlist instead to explicitly state what are safe to accept')
+          expect(CarrierWave.deprecator).to receive(:warn).with('Use of #extension_denylist is deprecated for the security reason, use #extension_allowlist instead to explicitly state what are safe to accept')
           expect { subject }.to raise_error(CarrierWave::IntegrityError)
         end
       end
@@ -125,7 +125,7 @@
       it "uses the blacklist but shows deprecation" do
         allow(uploader).to receive(:extension_blacklist).and_return(%w(jpg gif png))
 
-        expect(ActiveSupport::Deprecation).to receive(:warn).with('#extension_blacklist is deprecated, use #extension_denylist instead.')
+        expect(CarrierWave.deprecator).to receive(:warn).with('#extension_blacklist is deprecated, use #extension_denylist instead.')
         expect { subject }.to raise_error(CarrierWave::IntegrityError)
       end