diff --git a/services/core-api/app/api/incidents/models/mine_incident.py b/services/core-api/app/api/incidents/models/mine_incident.py
index 9419374df1..a71d6b2067 100644
--- a/services/core-api/app/api/incidents/models/mine_incident.py
+++ b/services/core-api/app/api/incidents/models/mine_incident.py
@@ -129,10 +129,10 @@ class MineIncident(SoftDeleteMixin, AuditMixin, Base):
         lazy='selectin')
 
     # Note there is a dependency on deleted_ind in mine_documents
-    documents = db.relationship('MineIncidentDocumentXref', lazy='joined')
+    documents = db.relationship('MineIncidentDocumentXref', lazy='selectin')
     mine_documents = db.relationship(
         'MineDocument',
-        lazy='joined',
+        lazy='selectin',
         secondary='mine_incident_document_xref',
         secondaryjoin='and_(foreign(MineIncidentDocumentXref.mine_document_guid) == remote(MineDocument.mine_document_guid),MineDocument.deleted_ind == False)'
     )
diff --git a/services/core-api/app/api/mines/mine/models/mine.py b/services/core-api/app/api/mines/mine/models/mine.py
index d159bb7eae..b076de4554 100644
--- a/services/core-api/app/api/mines/mine/models/mine.py
+++ b/services/core-api/app/api/mines/mine/models/mine.py
@@ -56,7 +56,7 @@ class Mine(SoftDeleteMixin, AuditMixin, Base):
         'MineTailingsStorageFacility',
         backref='mine',
         order_by='desc(MineTailingsStorageFacility.update_timestamp)',
-        lazy='joined')
+        lazy='selectin')
 
     # Almost always used, but faster to use selectin to load related data
     _permit_identities = db.relationship(