diff --git a/etl/scraper/scraper.py b/etl/scraper/scraper.py
index 0fb83a8..a99a9d1 100644
--- a/etl/scraper/scraper.py
+++ b/etl/scraper/scraper.py
@@ -9,7 +9,17 @@ from functools import wraps
 import re
 from etl.validator.validator import DomnaSharePointValidator
 
-WEEK_COMMENCING = os.getenv("WEEK_COMMENCING", "W.C. 10.03.2025")
+from datetime import datetime, timedelta
+
+def previous_monday(date):
+    # If it's Monday, return the same date
+    if date.weekday() == 0:
+        return date.strftime("%d%m%y")
+    # Otherwise, find the previous Monday
+    previous_monday = date - timedelta(days=date.weekday())
+    return f"W.C. {previous_monday.strftime('%d.%m.%Y')}"
+
+WEEK_COMMENCING = os.getenv("WEEK_COMMENCING", previous_monday())
 
 class SharePointInstaller(Enum):
     SOUTH_COAST_INSULATION = os.getenv("SOUTH_COAST_INSULATION_SERVICE_SHAREPOINT_ID", None)