diff --git a/brewtils/schemas.py b/brewtils/schemas.py
index ccaeee87..1d31c199 100644
--- a/brewtils/schemas.py
+++ b/brewtils/schemas.py
@@ -7,8 +7,8 @@
 import marshmallow
 import simplejson
 from marshmallow import Schema, fields, post_load, pre_load
-from marshmallow.utils import UTC
 from marshmallow_polyfield import PolyField
+from pytz import UTC
 
 __all__ = [
     "SystemSchema",