diff --git a/auth-api/src/auth_api/models/affiliation_invitation.py b/auth-api/src/auth_api/models/affiliation_invitation.py
index 4296e4a9f4..623cf983c2 100644
--- a/auth-api/src/auth_api/models/affiliation_invitation.py
+++ b/auth-api/src/auth_api/models/affiliation_invitation.py
@@ -118,27 +118,27 @@ def filter_by(cls, search_filter: AffiliationInvitationSearch, query=None) -> li
             results = db.session.query(AffiliationInvitation)
 
         if search_filter.from_org_id:
-            results = results.filter(AffiliationInvitation.from_org_id == search_filter.from_org_id)
+            results = results.filter(AffiliationInvitation.from_org_id == int(search_filter.from_org_id))
             filter_set = True
 
         if search_filter.to_org_id:
-            results = results.filter(AffiliationInvitation.to_org_id == search_filter.to_org_id)
+            results = results.filter(AffiliationInvitation.to_org_id == int(search_filter.to_org_id))
             filter_set = True
 
         if search_filter.sender_id:
-            results = results.filter(AffiliationInvitation.sender_id == search_filter.sender_id)
+            results = results.filter(AffiliationInvitation.sender_id == int(search_filter.sender_id))
             filter_set = True
 
         if search_filter.approver_id:
-            results = results.filter(AffiliationInvitation.approver_id == search_filter.approver_id)
+            results = results.filter(AffiliationInvitation.approver_id == int(search_filter.approver_id))
             filter_set = True
 
         if search_filter.entity_id:
-            results = results.filter(AffiliationInvitation.entity_id == search_filter.entity_id)
+            results = results.filter(AffiliationInvitation.entity_id == int(search_filter.entity_id))
             filter_set = True
 
         if search_filter.affiliation_id:
-            results = results.filter(AffiliationInvitation.affiliation_id == search_filter.affiliation_id)
+            results = results.filter(AffiliationInvitation.affiliation_id == int(search_filter.affiliation_id))
             filter_set = True
 
         if search_filter.status_codes: