diff --git a/vcsserver/hooks.py b/vcsserver/hooks.py
--- a/vcsserver/hooks.py
+++ b/vcsserver/hooks.py
@@ -28,7 +28,7 @@ import msgpack
 import dataclasses
 import pygit2
 
-from http.client import HTTPConnection
+import http.client
 
 
 import mercurial.scmutil
@@ -49,24 +49,33 @@ class HooksHttpClient(object):
     def __init__(self, hooks_uri):
         self.hooks_uri = hooks_uri
 
+    def __repr__(self):
+        return f'{self.__class__}(hook_uri={self.hooks_uri}, proto={self.proto})'
+
     def __call__(self, method, extras):
-        connection = HTTPConnection(self.hooks_uri)
+        connection = http.client.HTTPConnection(self.hooks_uri)
         # binary msgpack body
         headers, body = self._serialize(method, extras)
-        try:
-            connection.request('POST', '/', body, headers)
-        except Exception as error:
-            log.error('Hooks calling Connection failed on %s, org error: %s', connection.__dict__, error)
-            raise
-        response = connection.getresponse()
+        log.debug('Doing a new hooks call using HTTPConnection to %s', self.hooks_uri)
+
         try:
-            return msgpack.load(response)
-        except Exception:
-            response_data = response.read()
-            log.exception('Failed to decode hook response json data. '
-                          'response_code:%s, raw_data:%s',
-                          response.status, response_data)
-            raise
+            try:
+                connection.request('POST', '/', body, headers)
+            except Exception as error:
+                log.error('Hooks calling Connection failed on %s, org error: %s', connection.__dict__, error)
+                raise
+
+            response = connection.getresponse()
+            try:
+                return msgpack.load(response)
+            except Exception:
+                response_data = response.read()
+                log.exception('Failed to decode hook response json data. '
+                              'response_code:%s, raw_data:%s',
+                              response.status, response_data)
+                raise
+        finally:
+            connection.close()
 
     @classmethod
     def _serialize(cls, hook_name, extras):
@@ -75,7 +84,8 @@ class HooksHttpClient(object):
             'extras': extras
         }
         headers = {
-            'rc-hooks-protocol': cls.proto
+            "rc-hooks-protocol": cls.proto,
+            "Connection": "keep-alive"
         }
         return headers, msgpack.packb(data)