diff --git a/packages/postgrest-core/src/fetch/build-mutation-fetcher-response.ts b/packages/postgrest-core/src/fetch/build-mutation-fetcher-response.ts
index 43013a02d..a9d8e8d60 100644
--- a/packages/postgrest-core/src/fetch/build-mutation-fetcher-response.ts
+++ b/packages/postgrest-core/src/fetch/build-mutation-fetcher-response.ts
@@ -1,4 +1,4 @@
-import flatten from 'flat';
+import { flatten } from 'flat';
 
 import { get } from '../lib/get';
 import {
diff --git a/packages/postgrest-core/src/lib/encode-object.ts b/packages/postgrest-core/src/lib/encode-object.ts
index dcb476547..ac70ee871 100644
--- a/packages/postgrest-core/src/lib/encode-object.ts
+++ b/packages/postgrest-core/src/lib/encode-object.ts
@@ -1,4 +1,4 @@
-import flatten from 'flat';
+import { flatten } from 'flat';
 
 import { sortSearchParams } from './sort-search-param';