diff --git a/Changelog.md b/Changelog.md
index 184ea914f..11d98b0d3 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -6,6 +6,10 @@
 
 * Update third-party libraries
 
+### Fixed
+
+* Fix optionally setting locale in user API
+
 ## 5.8.1 - 2024-03-07
 
 ### Changed
diff --git a/app/Http/Controllers/UserManagement/API/UserController.php b/app/Http/Controllers/UserManagement/API/UserController.php
index 1b5756bca..f17958a5b 100644
--- a/app/Http/Controllers/UserManagement/API/UserController.php
+++ b/app/Http/Controllers/UserManagement/API/UserController.php
@@ -73,6 +73,9 @@ public function store(StoreUpdateUser $request): JsonResponse
         $user = new User();
         $user->name = $request->validated('name');
         $user->email = $request->validated('email');
+        if ($request->filled('locale')) {
+            $user->locale = $request->validated('locale');
+        }
         $user->password = Hash::make($request->password);
         $user->is_super_admin = $request->boolean('is_super_admin');
         $user->save();
@@ -122,6 +125,9 @@ public function update(StoreUpdateUser $request, User $user): JsonResponse
     {
         $user->name = $request->validated('name');
         $user->email = $request->validated('email');
+        if ($request->filled('locale')) {
+            $user->locale = $request->validated('locale');
+        }
         $passwordMessage = '';
         if ($request->filled('password')) {
             $user->password = Hash::make($request->password);