diff --git a/.changeset/shy-toys-fix.md b/.changeset/shy-toys-fix.md
new file mode 100644
index 000000000..f0e48ee9c
--- /dev/null
+++ b/.changeset/shy-toys-fix.md
@@ -0,0 +1,5 @@
+---
+"livekit-agents": patch
+---
+
+fix non pickleable log
diff --git a/livekit-agents/livekit/agents/ipc/proc_main.py b/livekit-agents/livekit/agents/ipc/proc_main.py
index 3c0565ebf..6d8ead956 100644
--- a/livekit-agents/livekit/agents/ipc/proc_main.py
+++ b/livekit-agents/livekit/agents/ipc/proc_main.py
@@ -26,7 +26,7 @@ class LogQueueHandler(logging.Handler):
     def __init__(self, duplex: utils.aio.duplex_unix._Duplex) -> None:
         super().__init__()
         self._duplex = duplex
-        self._send_q = queue.SimpleQueue[Optional[logging.LogRecord]]()
+        self._send_q = queue.SimpleQueue[Optional[bytes]]()
         self._send_thread = threading.Thread(
             target=self._forward_logs, name="ipc_log_forwarder"
         )
@@ -34,12 +34,12 @@ def __init__(self, duplex: utils.aio.duplex_unix._Duplex) -> None:
 
     def _forward_logs(self):
         while True:
-            record = self._send_q.get()
-            if record is None:
+            serialized_record = self._send_q.get()
+            if serialized_record is None:
                 break
 
             try:
-                self._duplex.send_bytes(pickle.dumps(record))
+                self._duplex.send_bytes(serialized_record)
             except duplex_unix.DuplexClosed:
                 break
 
@@ -47,6 +47,7 @@ def _forward_logs(self):
 
     def emit(self, record: logging.LogRecord) -> None:
         try:
+            # from https://github.com/python/cpython/blob/91b7f2e7f6593acefda4fa860250dd87d6f849bf/Lib/logging/handlers.py#L1453
             msg = self.format(record)
             record = copy.copy(record)
             record.message = msg
@@ -54,7 +55,15 @@ def emit(self, record: logging.LogRecord) -> None:
             record.args = None
             record.exc_info = None
             record.exc_text = None
-            self._send_q.put_nowait(record)
+            record.stack_info = None
+
+            # https://websockets.readthedocs.io/en/stable/topics/logging.html#logging-to-json
+            # webosckets library add "websocket" attribute to log records, which is not pickleable
+            if hasattr(record, "websocket"):
+                record.websocket = None
+
+            self._send_q.put_nowait(pickle.dumps(record))
+
         except Exception:
             self.handleError(record)