diff --git a/apps/backend/src/modules/prisma/prisma.service.ts b/apps/backend/src/modules/prisma/prisma.service.ts
index ce53bdb..fcee9ec 100644
--- a/apps/backend/src/modules/prisma/prisma.service.ts
+++ b/apps/backend/src/modules/prisma/prisma.service.ts
@@ -22,11 +22,20 @@ export class PrismaService
 
     async getExtensions(): Promise<
         {
-            oid: string | number;
+            oid: number;
             extname: string;
         }[]
     > {
-        return await this.$queryRaw`SELECT * FROM pg_extension`;
+        try {
+            return await this.$queryRaw`
+                SELECT oid::integer as oid, extname 
+                FROM pg_extension
+            `;
+        } catch (error) {
+            throw new Error(
+                `Failed to fetch database extensions: ${error.message}`,
+            );
+        }
     }
 
     async getExtensionNames(): Promise<string[]> {