diff --git a/scouter/workflow/sub_workflows/core_scouter.py b/scouter/workflow/sub_workflows/core_scouter.py
index 3beb4d9..89bf7ff 100644
--- a/scouter/workflow/sub_workflows/core_scouter.py
+++ b/scouter/workflow/sub_workflows/core_scouter.py
@@ -5,7 +5,7 @@ with workflow.unsafe.imports_passed_through():
     from typing import Any
     from datetime import timedelta
     from sientia_do.temporal.policies import retry_policy
-    from sientia_do.temporal.constants import DATETIME_FORMAT_MS_WITH_TZ
+    from sientia_do.temporal.constants import DATETIME_FORMAT_WITH_TZ
 
 
 @workflow.defn(name="core_scouter")
@@ -85,7 +85,7 @@ class CoreScouter:
                 'data': held_data,
                 'timestamp_conversion': {
                     'column': 'timestamp',
-                    'format': DATETIME_FORMAT_MS_WITH_TZ
+                    'format': DATETIME_FORMAT_WITH_TZ
                 }
             },
             retry_policy=retry_policy,