diff --git a/viewer-frontend/app/api/search/route.ts b/viewer-frontend/app/api/search/route.ts
index e35cfeb..cf1382d 100644
--- a/viewer-frontend/app/api/search/route.ts
+++ b/viewer-frontend/app/api/search/route.ts
@@ -171,12 +171,14 @@ export async function GET(request: NextRequest) {
       
       if (dateFrom || dateTo) {
         if (dateFrom) {
-          whereConditions.push(`date_taken >= $${paramIndex}`);
+          // Cast param to DATE to avoid "operator does not exist: date >= text" in Postgres
+          whereConditions.push(`date_taken >= $${paramIndex}::date`);
           params.push(dateFrom);
           paramIndex++;
         }
         if (dateTo) {
-          whereConditions.push(`date_taken <= $${paramIndex}`);
+          // Cast param to DATE to avoid "operator does not exist: date <= text" in Postgres
+          whereConditions.push(`date_taken <= $${paramIndex}::date`);
           params.push(dateTo);
           paramIndex++;
         }