diff --git a/fixtures/view_helper.rb b/fixtures/view_helper.rb
index d0782aa5..b649806e 100644
--- a/fixtures/view_helper.rb
+++ b/fixtures/view_helper.rb
@@ -2,6 +2,8 @@
 
 module ViewHelper
 	def self.extended(parent)
+		parent.include ViewHelper::Utils
+
 		parent.class_exec do
 			let(:output) { example.call }
 			let(:example) { view.new }
@@ -19,4 +21,18 @@ def svg_view(&block)
 			Class.new(Phlex::SVG, &block)
 		end
 	end
+
+	module Utils
+		def capture_stderr(&block)
+			captured_stream = StringIO.new
+			original_stream = $stderr
+			$stderr = captured_stream
+
+			block.call
+
+			captured_stream.string.strip
+		ensure
+			$stderr = original_stream
+		end
+	end
 end
diff --git a/lib/phlex/elements.rb b/lib/phlex/elements.rb
index 50e3c3c4..156527cd 100644
--- a/lib/phlex/elements.rb
+++ b/lib/phlex/elements.rb
@@ -35,6 +35,10 @@ def register_element(method_name, tag: nil, deprecated: false)
 			# frozen_string_literal: true
 
 			def #{method_name}(**attributes, &block)
+				if #{deprecated}
+					Kernel.warn("`#{method_name}` and `_#{method_name}` are deprecated and will be unsupported in Phlex 2.0. This HTML element is no longer recommended. Check out MDN web docs: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/#{tag}.")
+				end
+
 				target = @_context.target
 
 				if attributes.length > 0 # with attributes
@@ -74,6 +78,10 @@ def register_void_element(method_name, tag: method_name.name.tr("_", "-"), depre
 			# frozen_string_literal: true
 
 			def #{method_name}(**attributes)
+				if #{deprecated}
+					Kernel.warn("`#{method_name}` and `_#{method_name}` are deprecated and will be unsupported in Phlex 2.0. This HTML element is no longer recommended. Check out MDN web docs: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/#{tag}.")
+				end
+
 				target = @_context.target
 
 				if attributes.length > 0 # with attributes
diff --git a/test/phlex/view/tags.rb b/test/phlex/view/tags.rb
index 36364e7d..d8fd3616 100644
--- a/test/phlex/view/tags.rb
+++ b/test/phlex/view/tags.rb
@@ -122,4 +122,40 @@
 			end
 		end
 	end
+
+	describe "Elements deprecation" do
+		deprecated_methods = %i[param]
+
+		deprecated_methods.each do |method_name|
+			describe "##{method_name}" do
+				view do
+					define_method :view_template do
+						send(method_name.to_sym)
+					end
+				end
+
+				it "warns about `#{method_name}` deprecation" do
+					message = capture_stderr { view.call }
+					deprecation_message = "`#{method_name}` and `_#{method_name}` are deprecated and will be unsupported in Phlex 2.0. This HTML element is no longer recommended. Check out MDN web docs: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/#{method_name}."
+
+					expect(message).to be == deprecation_message
+				end
+			end
+
+			describe "#_#{method_name}" do
+				view do
+					define_method :view_template do
+						send(:"_#{method_name}")
+					end
+				end
+
+				it "warns about `_#{method_name}` deprecation" do
+					message = capture_stderr { view.call }
+					deprecation_message = "`#{method_name}` and `_#{method_name}` are deprecated and will be unsupported in Phlex 2.0. This HTML element is no longer recommended. Check out MDN web docs: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/#{method_name}."
+
+					expect(message).to be == deprecation_message
+				end
+			end
+		end
+	end
 end