diff --git a/CHANGES/8920.misc.rst b/CHANGES/8920.misc.rst
new file mode 100644
index 00000000000..2e8640593a4
--- /dev/null
+++ b/CHANGES/8920.misc.rst
@@ -0,0 +1 @@
+Enabled keep-alive support on proxies (which was originally disabled several years ago) -- by :user:`Dreamsorcerer`.
diff --git a/aiohttp/client_proto.py b/aiohttp/client_proto.py
index d42591e86f5..6765aaf0eba 100644
--- a/aiohttp/client_proto.py
+++ b/aiohttp/client_proto.py
@@ -66,9 +66,6 @@ def should_close(self) -> bool:
             or bool(self._tail)
         )
 
-    def force_close(self) -> None:
-        self._should_close = True
-
     def close(self) -> None:
         transport = self.transport
         if transport is not None:
diff --git a/aiohttp/connector.py b/aiohttp/connector.py
index e4a0b98b2df..3438d600ded 100644
--- a/aiohttp/connector.py
+++ b/aiohttp/connector.py
@@ -1284,11 +1284,6 @@ async def _create_proxy_connection(
             proxy_req, [], timeout, client_error=ClientProxyConnectionError
         )
 
-        # Many HTTP proxies has buggy keepalive support.  Let's not
-        # reuse connection but close it after processing every
-        # response.
-        proto.force_close()
-
         auth = proxy_req.headers.pop(hdrs.AUTHORIZATION, None)
         if auth is not None:
             if not req.is_ssl():