diff --git a/aiohttp/client_reqrep.py b/aiohttp/client_reqrep.py
index 817c3d4af27..511a659f3ab 100644
--- a/aiohttp/client_reqrep.py
+++ b/aiohttp/client_reqrep.py
@@ -547,8 +547,8 @@ def update_proxy(
         proxy_auth: Optional[BasicAuth],
         proxy_headers: Optional[LooseHeaders],
     ) -> None:
-        if proxy and not proxy.scheme == "http":
-            raise ValueError("Only http proxies are supported")
+        # if proxy and not proxy.scheme == "http":
+        #     raise ValueError("Only http proxies are supported")
         if proxy_auth and not isinstance(proxy_auth, helpers.BasicAuth):
             raise ValueError("proxy_auth must be None or BasicAuth() tuple")
         self.proxy = proxy
diff --git a/requirements/test.txt b/requirements/test.txt
index 5e3b21bd391..c2a6ec4ac0f 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -5,6 +5,7 @@ cryptography==3.3.1; platform_machine!="i686" and python_version<"3.9" # no 32-b
 freezegun==1.1.0
 mypy==0.910; implementation_name=="cpython"
 mypy-extensions==0.4.3; implementation_name=="cpython"
+proxy.py==2.0.0
 pytest==6.1.2
 pytest-cov==2.12.1
 pytest-mock==3.6.1
diff --git a/tests/conftest.py b/tests/conftest.py
index 85f482b56d6..574a4f76cf7 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -69,6 +69,12 @@ def tls_ca_certificate_pem_path(tls_certificate_authority):
         yield ca_cert_pem
 
 
+@pytest.fixture
+def tls_ca_private_key_pem_path(tls_certificate_authority):
+    with tls_certificate_authority.private_key_pem.tempfile() as ca_key_pem:
+        yield ca_key_pem
+
+
 @pytest.fixture
 def tls_certificate_pem_path(tls_certificate):
     with tls_certificate.private_key_and_cert_chain_pem.tempfile() as cert_pem:
diff --git a/tests/test_proxy_functional.py b/tests/test_proxy_functional.py
index 68763cd446e..2070626209a 100644
--- a/tests/test_proxy_functional.py
+++ b/tests/test_proxy_functional.py
@@ -1,8 +1,10 @@
 import asyncio
+import logging
 import os
 import pathlib
 from unittest import mock
 
+import proxy
 import pytest
 from yarl import URL
 
@@ -10,6 +12,79 @@
 from aiohttp import web
 
 
+@pytest.fixture
+def secure_proxy_url(
+    aiohttp_unused_port, tls_ca_certificate_pem_path, tls_ca_private_key_pem_path
+):
+    """Return the an instance of a running secure proxy."""
+    unused_port = str(aiohttp_unused_port())
+    address = "127.0.0.1"
+    input_args = [
+        "--num-workers",
+        "1",
+        "--hostname",
+        "127.0.0.1",
+        "--port",
+        unused_port,
+        "--cert-file",
+        tls_ca_certificate_pem_path,
+        "--key-file",
+        tls_ca_private_key_pem_path,
+    ]
+    proxy_url = URL.build(scheme="https", host=address, port=unused_port)
+    with proxy.Proxy(input_args=input_args):
+        yield proxy_url
+
+
+# @pytest.mark.xfail
+# @pytest.mark.parametrize("protocol", ["http", "http"])
+async def test_secure_proxy_http_absolute_path(
+    aiohttp_server,
+    ssl_ctx,
+    secure_proxy_url,
+    get_request,
+    # protocol
+) -> None:
+    """Test urls can be requested through a secure proxy."""
+
+    async def handler(request):
+        return web.Response(text="Test message")
+
+    app = web.Application()
+    app.router.add_route("GET", "/", handler)
+    server = await aiohttp_server(app)
+
+    # url = URL.build(scheme=protocol, host=server.host, port=server.port)
+    url = URL.build(scheme="http", host=server.host, port=server.port)
+    response = await get_request(url=url, proxy=secure_proxy_url, ssl=False)
+    assert response.status == 200
+
+
+# @pytest.mark.xfail
+# @pytest.mark.parametrize("protocol", ["http", "http"])
+async def test_secure_proxy_https_absolute_path(
+    aiohttp_server,
+    ssl_ctx,
+    secure_proxy_url,
+    get_request,
+    client_ssl_ctx,
+    # protocol
+) -> None:
+    """Test urls can be requested through a secure proxy."""
+
+    async def handler(request):
+        return web.Response(text="Test message")
+
+    app = web.Application()
+    app.router.add_route("GET", "/", handler)
+    server = await aiohttp_server(app, ssl=ssl_ctx)
+
+    url = URL.build(scheme="https", host=server.host, port=server.port)
+    response = await get_request(url=url, ssl=client_ssl_ctx)
+    # response = await get_request(url=url, proxy=secure_proxy_url)
+    assert response.status == 200
+
+
 @pytest.fixture
 def proxy_test_server(aiohttp_raw_server, loop, monkeypatch):
     # Handle all proxy requests and imitate remote server response.