diff --git a/backend/app/config.py b/backend/app/config.py
index e137429f..6b378a30 100644
--- a/backend/app/config.py
+++ b/backend/app/config.py
@@ -66,17 +66,17 @@ class Settings(BaseSettings):
     ORDNANCE_SURVEY_API_KEY: str = "changeme"
 
     # Sharepoint
-    SHAREPOINT_CLIENT_ID: str = "changeme"
-    SHAREPOINT_CLIENT_SECRET: str = "changeme"
-    SHAREPOINT_TENANT_ID: str = "changeme"
-    DOMNA_SHAREPOINT_ID: str = "changeme"
-    OSMOSIS_ACD_SHAREPOINT_ID: str = "changeme"
-    PRIVATE_PAY_SHAREPOINT_ID: str = "changeme"
-    SOCIAL_HOUSING_WAVE_3_SHAREPOINT_ID: str = "changeme"
+    SHAREPOINT_CLIENT_ID: Optional[str] = None
+    SHAREPOINT_CLIENT_SECRET: Optional[str] = None
+    SHAREPOINT_TENANT_ID: Optional[str] = None
+    DOMNA_SHAREPOINT_ID: Optional[str] = None
+    OSMOSIS_ACD_SHAREPOINT_ID: Optional[str] = None
+    PRIVATE_PAY_SHAREPOINT_ID: Optional[str] = None
+    SOCIAL_HOUSING_WAVE_3_SHAREPOINT_ID: Optional[str] = None
 
     # Pas Hub
-    PASHUB_EMAIL: str = "changeme"
-    PASHUB_PASSWORD: str = "changeme"
+    PASHUB_EMAIL: Optional[str] = None
+    PASHUB_PASSWORD: Optional[str] = None
 
     # Optional AWS creds (only required in local)
     AWS_ACCESS_KEY_ID: Optional[str] = None