diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 3b2b36f0..a7a63120 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -13,6 +13,14 @@ Change Log
 
 Unreleased
 ~~~~~~~~~~
+
+[3.4.3] - 2025-08-06
+~~~~~~~~~~~~~~~~~~~~
+
+Fixed
++++++
+* Fix Celery protocol v2 header parameter name from ``task_id`` to ``id`` in ``extract_proto2_headers`` function
+
 [3.4.2] - 2025-06-24
 ~~~~~~~~~~~~~~~~~~~~
 
diff --git a/tests/test_signals.py b/tests/test_signals.py
index 9b0e5a0e..c0e9a3e5 100644
--- a/tests/test_signals.py
+++ b/tests/test_signals.py
@@ -202,7 +202,7 @@ def test_create_user_task_protocol_v2(self):
                 {'callbacks': [], 'errbacks': [], 'task_chain': None, 'chord': None}
             )
             headers = {
-                'task_id': 'tid', 'retries': 0, 'eta': None, 'expires': None,
+                'id': 'tid', 'retries': 0, 'eta': None, 'expires': None,
                 'group': None, 'timelimit': [None, None], 'task': 'test_signals.sample_task'
             }
             create_user_task(sender='test_signals.sample_task', body=body, headers=headers)
@@ -565,7 +565,7 @@ class TestUtils:
 
     def test_extract_proto2_headers(self):
         headers = extract_proto2_headers(
-            task_id='abc123', retries=2, eta='2025-05-30T12:00:00',
+            id='abc123', retries=2, eta='2025-05-30T12:00:00',
             expires=None, group='group1', timelimit=[10, 20],
             task='my_task', extra='ignored')
         assert headers == {
@@ -609,7 +609,7 @@ def test_proto2_to_proto1(self, monkeypatch):
              'task_chain': ['a'], 'chord': 'ch'}
         )
         headers = {
-            'task_id': 'tid', 'retries': 1, 'eta': 'eta', 'expires': 'exp',
+            'id': 'tid', 'retries': 1, 'eta': 'eta', 'expires': 'exp',
             'group': 'grp', 'timelimit': [1, 2], 'task': 't',
             'extra': 'ignored'
         }
diff --git a/user_tasks/__init__.py b/user_tasks/__init__.py
index 014d3cba..4615993b 100644
--- a/user_tasks/__init__.py
+++ b/user_tasks/__init__.py
@@ -4,7 +4,7 @@
 
 from django.dispatch import Signal
 
-__version__ = '3.4.2'
+__version__ = '3.4.3'
 
 
 # This signal is emitted when a user task reaches any final state:
diff --git a/user_tasks/utils.py b/user_tasks/utils.py
index 4b553491..2359a597 100644
--- a/user_tasks/utils.py
+++ b/user_tasks/utils.py
@@ -23,12 +23,12 @@ def proto2_to_proto1(body, headers):
     return new_body
 
 
-def extract_proto2_headers(task_id, retries, eta, expires, group, timelimit, task, **_):
+def extract_proto2_headers(id, retries, eta, expires, group, timelimit, task, **_):  # pylint: disable=redefined-builtin
     """
     Extract relevant headers from protocol v2 format.
     """
     return {
-        "id": task_id,
+        "id": id,
         "task": task,
         "retries": retries,
         "eta": eta,