diff --git a/orchestrator/activities/mongo_db.py b/orchestrator/activities/mongo_db.py
index d456d7e..e38a8eb 100644
--- a/orchestrator/activities/mongo_db.py
+++ b/orchestrator/activities/mongo_db.py
@@ -459,7 +459,7 @@ class MongoDB(BaseActivity):
             )
 
             for item in data:
-                item['timestamp'] = item['timestamp'].replace(tzinfo=timezone.utc).strftime(
+                item['timestamp'] = item['timestamp'].strftime(
                     DATETIME_FORMAT_MS_WITH_TZ)
 
             self.info(