diff --git a/src/ui/DatePicker.tsx b/src/ui/DatePicker.tsx
index f16876758..f081218c1 100644
--- a/src/ui/DatePicker.tsx
+++ b/src/ui/DatePicker.tsx
@@ -1,6 +1,6 @@
 import 'react-datepicker/dist/react-datepicker.css';
 
-import { de, fr, nl } from 'date-fns/locale';
+import { de, fr, nlBE as nl } from 'date-fns/locale';
 import { useRef } from 'react';
 import ReactDatePicker, {
   registerLocale,
diff --git a/src/utils/formatPeriod.ts b/src/utils/formatPeriod.ts
index fe3e27331..800c9f03c 100644
--- a/src/utils/formatPeriod.ts
+++ b/src/utils/formatPeriod.ts
@@ -1,5 +1,5 @@
 import { differenceInDays, format } from 'date-fns';
-import { fr, nl } from 'date-fns/locale';
+import { fr, nlBE as nl } from 'date-fns/locale';
 import capitalize from 'lodash/capitalize';
 import type { TFunction } from 'react-i18next';