diff --git a/web/admin/accounts.php b/web/admin/accounts.php
index 2a81fb9..cfc6ff0 100644
--- a/web/admin/accounts.php
+++ b/web/admin/accounts.php
@@ -71,6 +71,42 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['action'])) {
         header('Location: /admin/accounts.php');
         exit;
     }
+
+    if ($_POST['action'] === 'edit') {
+        $id          = (int)$_POST['account_id'];
+        $display     = trim($_POST['display_name'] ?? '');
+        $webhook     = trim($_POST['webhook_url'] ?? '');
+        $newPassword = trim($_POST['new_password'] ?? '');
+
+        db()->prepare('UPDATE accounts SET display_name = ?, webhook_url = ? WHERE id = ?')
+            ->execute([$display ?: null, $webhook ?: null, $id]);
+
+        if (strlen($newPassword) >= 6) {
+            $st = db()->prepare('SELECT username FROM accounts WHERE id = ?');
+            $st->execute([$id]);
+            $row = $st->fetch();
+            if ($row) {
+                $domain = cfg('domain');
+                $hash   = shell_exec(sprintf('doveadm pw -s SHA512-CRYPT -p %s', escapeshellarg($newPassword)));
+                $hash   = trim($hash ?? '');
+                if ($hash) {
+                    shell_exec(sprintf(
+                        "sed -i 's|^%s@%s:.*|%s@%s:%s:::|' /etc/dovecot/users",
+                        $row['username'], $domain,
+                        $row['username'], $domain, $hash
+                    ));
+                    $smbUser = $row['username'];
+                    shell_exec(sprintf('(echo %s; echo %s) | smbpasswd -s %s 2>/dev/null',
+                        escapeshellarg($newPassword), escapeshellarg($newPassword), escapeshellarg($smbUser)
+                    ));
+                }
+            }
+        }
+
+        flash('success', "Compte mis à jour.");
+        header('Location: /admin/accounts.php');
+        exit;
+    }
 }
 
 $accounts = db()->query(
@@ -183,13 +219,19 @@ html_navbar('accounts');
                                     </form>
                                 </td>
                                 <td class="text-center">
-                                    <form method="post" onsubmit="return confirm('Supprimer le compte <?= htmlspecialchars($acc['username']) ?> et tous ses fichiers ?')">
-                                        <input type="hidden" name="action" value="delete">
-                                        <input type="hidden" name="account_id" value="<?= $acc['id'] ?>">
-                                        <button class="btn btn-sm btn-outline-danger" title="Supprimer">
-                                            <i class="bi bi-trash"></i>
+                                    <div class="d-flex gap-1 justify-content-center">
+                                        <button class="btn btn-sm btn-outline-secondary" title="Modifier"
+                                            onclick="openEdit(<?= $acc['id'] ?>, '<?= htmlspecialchars(addslashes($acc['display_name'] ?? ''), ENT_QUOTES) ?>', '<?= htmlspecialchars(addslashes($acc['webhook_url'] ?? ''), ENT_QUOTES) ?>', '<?= htmlspecialchars($acc['username']) ?>')">
+                                            <i class="bi bi-pencil"></i>
                                         </button>
-                                    </form>
+                                        <form method="post" onsubmit="return confirm('Supprimer le compte <?= htmlspecialchars($acc['username']) ?> et tous ses fichiers ?')">
+                                            <input type="hidden" name="action" value="delete">
+                                            <input type="hidden" name="account_id" value="<?= $acc['id'] ?>">
+                                            <button class="btn btn-sm btn-outline-danger" title="Supprimer">
+                                                <i class="bi bi-trash"></i>
+                                            </button>
+                                        </form>
+                                    </div>
                                 </td>
                             </tr>
                         <?php endforeach; ?>
@@ -201,4 +243,49 @@ html_navbar('accounts');
         </div>
     </div>
 </div>
+<!-- Modal édition -->
+<div class="modal fade" id="editModal" tabindex="-1">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form method="post">
+                <input type="hidden" name="action" value="edit">
+                <input type="hidden" name="account_id" id="edit-id">
+                <div class="modal-header">
+                    <h5 class="modal-title"><i class="bi bi-pencil me-2"></i>Modifier le compte <strong id="edit-username"></strong></h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+                </div>
+                <div class="modal-body">
+                    <div class="mb-3">
+                        <label class="form-label">Nom affiché</label>
+                        <input type="text" name="display_name" id="edit-display" class="form-control" placeholder="Nom affiché">
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label">Webhook URL</label>
+                        <input type="url" name="webhook_url" id="edit-webhook" class="form-control" placeholder="https://…/webhook">
+                        <div class="form-text">POST JSON à chaque réception. Laisser vide pour désactiver.</div>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label">Nouveau mot de passe <span class="text-muted">(laisser vide pour ne pas changer)</span></label>
+                        <input type="password" name="new_password" id="edit-password" class="form-control" minlength="6" placeholder="••••••">
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Annuler</button>
+                    <button type="submit" class="btn btn-primary"><i class="bi bi-floppy-fill me-1"></i>Enregistrer</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<script>
+function openEdit(id, display, webhook, username) {
+    document.getElementById('edit-id').value       = id;
+    document.getElementById('edit-username').textContent = username;
+    document.getElementById('edit-display').value  = display;
+    document.getElementById('edit-webhook').value  = webhook;
+    document.getElementById('edit-password').value = '';
+    new bootstrap.Modal(document.getElementById('editModal')).show();
+}
+</script>
 <?php html_foot(); ?>