diff --git a/geneit_app/src/widgets/forms/PropDateInput.tsx b/geneit_app/src/widgets/forms/PropDateInput.tsx
index 914de98..6c50f07 100644
--- a/geneit_app/src/widgets/forms/PropDateInput.tsx
+++ b/geneit_app/src/widgets/forms/PropDateInput.tsx
@@ -2,6 +2,7 @@ import { LocalizationProvider } from "@mui/x-date-pickers";
 import { AdapterDayjs } from "@mui/x-date-pickers/AdapterDayjs";
 import { DatePicker } from "@mui/x-date-pickers/DatePicker";
 import dayjs from "dayjs";
+import "dayjs/locale/fr";
 import { fmtUnixDate } from "../../utils/time_utils";
 import { PropEdit } from "./PropEdit";
 
@@ -34,7 +35,7 @@ export function PropDateInput(p: {
 
   return (
     <div style={{ margin: "10px auto" }}>
-      <LocalizationProvider dateAdapter={AdapterDayjs}>
+      <LocalizationProvider dateAdapter={AdapterDayjs} adapterLocale="fr">
         <DatePicker
           label={p.label}
           value={value}