diff --git a/VERSION b/VERSION
index e76466f..46e7081 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.4.02-beta
+0.4.03-beta
diff --git a/public/js/admin.js b/public/js/admin.js
index 4e26c1b..8496a3c 100644
--- a/public/js/admin.js
+++ b/public/js/admin.js
@@ -433,7 +433,7 @@
       /* klas (uitwisselen met andere klassen) */
       const cs = classSel(u.classId);
       cs.addEventListener("change", async ()=>{
-        try{ await api("/admin/users/"+u.id, {method:"PATCH", body:{classId: cs.value ? +cs.value : null}}); }
+        try{ await api("/admin/users/"+u.id, {method:"PATCH", body:{classId: cs.value ? +cs.value : null}}); reload(); }
         catch(e){ note(e.message); }
       });
       tools.appendChild(field("amFieldClass", cs));
diff --git a/public/js/core.js b/public/js/core.js
index 9947350..e613fba 100644
--- a/public/js/core.js
+++ b/public/js/core.js
@@ -2,7 +2,7 @@
 "use strict";
 /* version — shown until /api/version resolves (or if the fetch fails, e.g. offline).
    Kept in sync by hand with the VERSION file at the repo root on every release. */
-const VERSION = "0.4.02-beta";
+const VERSION = "0.4.03-beta";
 (function(){
   const tag = document.getElementById("verTag");
   tag.textContent = "v"+VERSION;
diff --git a/test/schools.test.js b/test/schools.test.js
index 5c0b96c..e11d299 100644
--- a/test/schools.test.js
+++ b/test/schools.test.js
@@ -140,6 +140,15 @@ test('systeemmanager koppelt een gebruiker aan een school en maakt hem weer los'
   await app3.close();
 });
 
+test('leerling verplaatsen naar een andere klas (uitwisselen) werkt', async () => {
+  const { app, calls } = await makeApp(superUser, { id: 9, role: 'pupil', school_id: 2, class_id: 50, username: 'lena' });
+  const res = await app.inject({ method: 'PATCH', url: '/api/admin/users/9', cookies, payload: { classId: 100 } });
+  assert.equal(res.statusCode, 200, res.body);
+  const upd = calls.find((c) => c.sql === 'UPDATE users SET class_id = $1 WHERE id = $2');
+  assert.deepEqual(upd.params, [100, 9]);
+  await app.close();
+});
+
 test('school koppelen kan niet door een schoolbeheerder en niet op super/parent', async () => {
   const { app, calls } = await makeAppWithSchool(admin, { id: 7, role: 'teacher', school_id: 2, username: 'juf' });
   await app.inject({ method: 'PATCH', url: '/api/admin/users/7', cookies, payload: { schoolId: 3 } });