diff --git a/stapler/cert_manager.py b/stapler/cert_manager.py
index 647bd31..2b8525b 100644
--- a/stapler/cert_manager.py
+++ b/stapler/cert_manager.py
@@ -200,6 +200,7 @@ class CertManager:
                 cert_file,
                 key_file,
             )
+            new_context.set_alpn_protocols(["http/1.1"])
             socket.context = new_context
         except Exception:
             self.logger.exception("Could not create HTTPS context for %s", host)
diff --git a/stapler/handlers.py b/stapler/handlers.py
index d7bb5cc..f802ab6 100644
--- a/stapler/handlers.py
+++ b/stapler/handlers.py
@@ -27,6 +27,7 @@ if typing.TYPE_CHECKING:
 
 class BaseHandler(abc.ABC, http.server.BaseHTTPRequestHandler):
     timeout = 10
+    protocol_version = "HTTP/1.1"
     REQUEST_COUNT = 0
 
     @typing.override
@@ -111,6 +112,8 @@ class BaseHandler(abc.ABC, http.server.BaseHTTPRequestHandler):
     @typing.override
     def log_request(self, code: str = "?", size: str = "-") -> None:  # ty:ignore[invalid-method-override] # pragma: no cover
         if isinstance(code, http.HTTPStatus):
+            code = code.value
+        if isinstance(code, int):
             color = logs.TermColor.RED
             if 100 <= code < 200:
                 color = logs.TermColor.CYAN
@@ -120,7 +123,7 @@ class BaseHandler(abc.ABC, http.server.BaseHTTPRequestHandler):
                 color = logs.TermColor.BLUE
             elif 400 <= code < 500:
                 color = logs.TermColor.YELLOW
-            code = color + str(code.value) + logs.TermColor.RESET
+            code = color + str(code) + logs.TermColor.RESET
         if size == "" and self.out_size > 0:
             size = str(self.out_size)
         args = (
@@ -193,6 +196,7 @@ class BaseHandler(abc.ABC, http.server.BaseHTTPRequestHandler):
                 headers=headers,
                 allow_redirects=False,
                 timeout=480,
+                stream=False,
             )
         except Exception as e:
             self.send_error(
@@ -385,6 +389,7 @@ class RequestHandler(http.server.SimpleHTTPRequestHandler, BaseHandler):
             self._pre_log_request()
             if not self._proxy_or_redirect():
                 super().do_HEAD()
+            self.close_connection = True
 
     @typing.override
     def do_GET(self) -> None:
@@ -394,7 +399,9 @@ class RequestHandler(http.server.SimpleHTTPRequestHandler, BaseHandler):
                 return None
             if self.path == "/" and self.host == self.default_host:
                 return self.send_basic_body(self.server_signature())
-            return super().do_GET()
+            super().do_GET()
+            self.close_connection = True
+            return None
 
     def do_PUT(self) -> None:
         with self.handle_errors():
@@ -620,16 +627,19 @@ class RequestHandler(http.server.SimpleHTTPRequestHandler, BaseHandler):
 
 
 class UpgradeHandler(RequestHandler):
+    protocol_version = "HTTP/1.0"
     server_version = "StaplerUpgradeServer/" + PKG_VERSION
 
     def do_HEAD(self) -> None:
         with self.handle_errors():
             self._pre_log_request()
             self.send_redirect(f"https://{self.host}{self.path}")
+            self.close_connection = True
 
     def do_GET(self) -> None:
         with self.handle_errors():
             if self.path.startswith(self.CERTBOT_CHALLENGE_PATH):
                 super().do_GET()
+                self.close_connection = True
             else:
                 self.do_HEAD()
diff --git a/stapler/server.py b/stapler/server.py
index 7400913..da5baf2 100644
--- a/stapler/server.py
+++ b/stapler/server.py
@@ -29,7 +29,6 @@ class StaplerServer:
         "logger",
         "params",
         "registry",
-        "server",
         "token_manager",
     ]
 
@@ -41,7 +40,6 @@ class StaplerServer:
         self.token_manager: TokenManager = TokenManager(params, self.registry)
         self.data_dir: DataDir = DataDir(params.data_dir)
         self.default_host: str = params.host.split(":", maxsplit=2)[0]
-        self.server: http.server.ThreadingHTTPServer | None = None
 
     def __get_all_hosts(self) -> list[str]:
         return [self.default_host, *self.registry.get_hosts()]
@@ -131,7 +129,7 @@ class StaplerServer:
         for line in STAPLER_ASCII.split("\n"):
             self.logger.debug(line.ljust(36))
         self.__startup()
-        self.server = self.__create_base_server()
+        base_server = self.__create_base_server()
         upgrade_server = self.__start_upgrade_server() if self.params.https else None
         self.logger.info(
             "Server up and ready on %s://%s",
@@ -140,7 +138,7 @@ class StaplerServer:
         )
         self.__start_background_tasks()
         with contextlib.suppress(KeyboardInterrupt):
-            self.server.serve_forever()
+            base_server.serve_forever()
         self.logger.info("Shutting down...")
         if upgrade_server is not None:
             upgrade_server.shutdown()
diff --git a/tests/test_handlers.py b/tests/test_handlers.py
index 038c0d8..7d7b960 100644
--- a/tests/test_handlers.py
+++ b/tests/test_handlers.py
@@ -859,6 +859,7 @@ class TestRequestHandler(BaseHandlerTestCase):
                     },
                     "allow_redirects": False,
                     "timeout": 480,
+                    "stream": False,
                 },
             ),
             self.expects_status_only(handler, 200, "OK"),
@@ -903,6 +904,7 @@ class TestRequestHandler(BaseHandlerTestCase):
                     },
                     "allow_redirects": False,
                     "timeout": 480,
+                    "stream": False,
                 },
             ),
             self.expects_status_only(handler, 200, "OK"),
@@ -945,6 +947,7 @@ class TestRequestHandler(BaseHandlerTestCase):
                     },
                     "allow_redirects": False,
                     "timeout": 480,
+                    "stream": False,
                 },
             ),
             self.expects_basic_body(handler, "hello", message="OK"),
@@ -979,6 +982,7 @@ class TestRequestHandler(BaseHandlerTestCase):
                     },
                     "allow_redirects": False,
                     "timeout": 480,
+                    "stream": False,
                 },
             ) as request_mock,
             self.expects_status_only(
@@ -1022,6 +1026,7 @@ class TestRequestHandler(BaseHandlerTestCase):
                     },
                     "allow_redirects": False,
                     "timeout": 480,
+                    "stream": False,
                 },
             ),
             self.expects_status_only(handler, 200, "OK"),
@@ -1062,6 +1067,7 @@ class TestRequestHandler(BaseHandlerTestCase):
                     },
                     "allow_redirects": False,
                     "timeout": 480,
+                    "stream": False,
                 },
             ),
             self.expects_status_only(handler, 200, "OK"),