diff --git a/k8s_gitlab_borg/__main__.py b/k8s_gitlab_borg/__main__.py
index 6d68d87..e1f41a9 100644
--- a/k8s_gitlab_borg/__main__.py
+++ b/k8s_gitlab_borg/__main__.py
@@ -18,7 +18,7 @@ from base64 import b64decode
 from minio import Minio
 
 from datetime import datetime, timezone, timedelta
-from dateutil.tz import gettz, tzutc
+from dateutil.tz import gettz, UTC
 import pytimeparse
 
 import re
@@ -318,7 +318,7 @@ def main():
         if pattern_timezone:
             pattern_timezone = gettz(pattern_timezone)
         else:
-            pattern_timezone = tzutc
+            pattern_timezone = UTC
         logger.debug("Rule timezone: %s", pattern_timezone)
 
         copy_candidates = set()