diff --git a/api/src/modules/projects/projects.service.ts b/api/src/modules/projects/projects.service.ts
index cd17f263..b56ac89e 100644
--- a/api/src/modules/projects/projects.service.ts
+++ b/api/src/modules/projects/projects.service.ts
@@ -30,14 +30,14 @@ export class ProjectsService extends AppBaseService<
   ): Promise<PaginatedProjectsWithMaximums> {
     const qb = this.dataSource
       .createQueryBuilder()
-      .select('SUM(abatement_potential)::integer', 'maxAbatementPotential')
+      .select('SUM(abatement_potential)::BIGINT', 'maxAbatementPotential')
       .from(Project, 'project');
 
     const { costRangeSelector } = query;
     if (costRangeSelector == COST_TYPE_SELECTOR.NPV) {
-      qb.addSelect('SUM(capex_npv + opex_npv)::integer', 'maxTotalCost');
+      qb.addSelect('SUM(capex_npv + opex_npv)::BIGINT', 'maxTotalCost');
     } else {
-      qb.addSelect('SUM(capex + opex)::integer', 'maxTotalCost');
+      qb.addSelect('SUM(capex + opex)::BIGINT', 'maxTotalCost');
     }
 
     const totalsQuery = this.applySearchFiltersToQueryBuilder(qb, query);