diff --git a/src/specklepy/logging/metrics.py b/src/specklepy/logging/metrics.py
index 67d684e..c69e0de 100644
--- a/src/specklepy/logging/metrics.py
+++ b/src/specklepy/logging/metrics.py
@@ -6,10 +6,11 @@ import platform
 import queue
 import sys
 import threading
-from typing import Optional
 
 import requests
 
+from specklepy.core.api.credentials import Account
+
 """
 Anonymous telemetry to help us understand how to make a better Speckle.
 This really helps us to deliver a better open source project and product!
@@ -54,7 +55,7 @@ def enable():
     TRACK = True
 
 
-def set_host_app(host_app: str, host_app_version: Optional[str] = None):
+def set_host_app(host_app: str, host_app_version: str | None = None):
     global HOST_APP, HOST_APP_VERSION
     HOST_APP = host_app
     HOST_APP_VERSION = host_app_version or HOST_APP_VERSION
@@ -62,8 +63,8 @@ def set_host_app(host_app: str, host_app_version: Optional[str] = None):
 
 def track(
     action: str,
-    account=None,
-    custom_props: Optional[dict] = None,
+    account: Account | None = None,
+    custom_props: dict | None = None,
 ):
     if not TRACK:
         return
@@ -91,7 +92,7 @@ def track(
         LOG.debug(f"Error queueing metrics request: {str(ex)}")
 
 
-def initialise_tracker(account=None):
+def initialise_tracker(account: Account | None = None):
     global METRICS_TRACKER
     if not METRICS_TRACKER:
         METRICS_TRACKER = MetricsTracker()