diff --git a/async-http.gemspec b/async-http.gemspec
index b134eb0d..69a63320 100644
--- a/async-http.gemspec
+++ b/async-http.gemspec
@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
 	
 	spec.add_dependency "async", ">= 2.35.1"
 	spec.add_dependency "async-pool", "~> 0.11"
-	spec.add_dependency "io-endpoint", "~> 0.14"
+	spec.add_dependency "io-endpoint", "~> 0.18"
 	spec.add_dependency "io-stream", "~> 0.14"
 	spec.add_dependency "protocol-http", "~> 0.66"
 	spec.add_dependency "protocol-http1", "~> 0.39"
diff --git a/lib/async/http/endpoint.rb b/lib/async/http/endpoint.rb
index 3f693814..469d3fe8 100644
--- a/lib/async/http/endpoint.rb
+++ b/lib/async/http/endpoint.rb
@@ -70,6 +70,7 @@ def self.[](url)
 			# @option hostname [String] the hostname to connect to (or bind to), overrides the URL hostname (used for SNI).
 			# @option port [Integer] the port to bind to, overrides the URL port.
 			# @option ssl_context [OpenSSL::SSL::SSLContext] the context to use for TLS.
+			# @option tls_configuration [IO::Endpoint::TLS::Configuration] the transport-neutral TLS configuration.
 			# @option alpn_protocols [Array(String)] the alpn protocols to negotiate.
 			def initialize(url, endpoint = nil, **options)
 				super(**options)
@@ -206,6 +207,11 @@ def ssl_context
 				end
 			end
 			
+			# @returns [IO::Endpoint::TLS::Configuration | Nil] The transport-neutral TLS configuration.
+			def tls_configuration
+				@options[:tls_configuration]
+			end
+			
 			# Build a suitable endpoint, optionally wrapping in TLS for secure connections.
 			# @parameter endpoint [IO::Endpoint::Generic | Nil] An optional underlying endpoint to wrap.
 			# @returns [IO::Endpoint::Generic] The constructed endpoint.
@@ -216,6 +222,7 @@ def build_endpoint(endpoint = nil)
 					# Wrap it in SSL:
 					return ::IO::Endpoint::SSLEndpoint.new(endpoint,
 						ssl_context: self.ssl_context,
+						tls_configuration: self.tls_configuration,
 						hostname: @url.hostname,
 						timeout: self.timeout,
 					)
@@ -280,6 +287,7 @@ def tcp_options
 				options.delete(:port)
 				options.delete(:hostname)
 				options.delete(:ssl_context)
+				options.delete(:tls_configuration)
 				options.delete(:alpn_protocols)
 				options.delete(:protocol)
 				
diff --git a/releases.md b/releases.md
index 0247e6b8..91c02a3b 100644
--- a/releases.md
+++ b/releases.md
@@ -1,5 +1,9 @@
 # Releases
 
+## Unreleased
+
+  - Added transport-neutral TLS configuration support to `Async::HTTP::Endpoint`.
+
 ## v0.99.0
 
   - Retry safe requests when a remote HTTP/2 endpoint resets the stream with `INTERNAL_ERROR` before returning a response.
diff --git a/test/async/http/endpoint.rb b/test/async/http/endpoint.rb
index 31a7283b..2b166e29 100644
--- a/test/async/http/endpoint.rb
+++ b/test/async/http/endpoint.rb
@@ -57,6 +57,23 @@
 		end
 	end
 	
+	with "#tls_configuration" do
+		let(:tls_configuration) do
+			IO::Endpoint::TLS::Configuration.new(verification: :none)
+		end
+		
+		it "forwards the TLS configuration to the SSL endpoint" do
+			endpoint = subject.parse("https://example.com", tls_configuration: tls_configuration)
+			ssl_endpoint = endpoint.endpoint
+			
+			expect(endpoint.tls_configuration).to be_equal(tls_configuration)
+			expect(ssl_endpoint).to be_a(IO::Endpoint::SSLEndpoint)
+			expect(ssl_endpoint.tls_configuration).to be_equal(tls_configuration)
+			expect(ssl_endpoint.context.verify_mode).to be == OpenSSL::SSL::VERIFY_NONE
+			expect(ssl_endpoint.endpoint.options).not.to be(:key?, :tls_configuration)
+		end
+	end
+	
 	with ".for" do
 		describe Async::HTTP::Endpoint.for("http", "localhost") do
 			it "should have correct attributes" do