diff --git a/src/components/KanbanBoard.tsx b/src/components/KanbanBoard.tsx
index 93fe02d..9f8eae5 100644
--- a/src/components/KanbanBoard.tsx
+++ b/src/components/KanbanBoard.tsx
@@ -1,7 +1,7 @@
 
 import { useEffect, useState } from "react";
 import type { Task } from "@/lib/api";
-import { getTasks, updateTask, getCurrentSlug } from "@/lib/api";
+import { getTasks, updateTask } from "@/lib/api";
 import TaskModal from "@/components/TaskModal";
 import CreateTaskModal from "@/components/CreateTaskModal";
 import { wsClient } from "@/lib/ws";
@@ -80,12 +80,12 @@ export default function KanbanBoard({ projectId, projectSlug }: Props) {
     if (!task || task.status === status) return;
     setTasks((prev) => prev.map((t) => (t.id === draggedTask ? { ...t, status } : t)));
     setDraggedTask(null);
-    try { await updateTask(draggedTask, { status }, getCurrentSlug()); } catch { loadTasks(); }
+    try { await updateTask(draggedTask, { status }); } catch { loadTasks(); }
   };
 
   const handleMoveTask = async (taskId: string, newStatus: string) => {
     setTasks((prev) => prev.map((t) => (t.id === taskId ? { ...t, status: newStatus } : t)));
-    try { await updateTask(taskId, { status: newStatus }, getCurrentSlug()); } catch { loadTasks(); }
+    try { await updateTask(taskId, { status: newStatus }); } catch { loadTasks(); }
   };
 
   if (loading) {
diff --git a/src/components/TaskModal.tsx b/src/components/TaskModal.tsx
index 8eb3495..d97dcf3 100644
--- a/src/components/TaskModal.tsx
+++ b/src/components/TaskModal.tsx
@@ -2,7 +2,7 @@
 import { useEffect, useState } from "react";
 import type { Task, Member, Step, Message } from "@/lib/api";
 import {
-  updateTask, deleteTask, getMembers, getCurrentSlug,
+  updateTask, deleteTask, getMembers,
   getSteps, createStep, updateStep, deleteStep as _deleteStepApi,
   getMessages, sendMessage,
 } from "@/lib/api";
@@ -62,7 +62,7 @@ export default function TaskModal({ task, projectId: _projectId, projectSlug: _p
   const save = async (patch: Partial<Task>) => {
     setSaving(true);
     try {
-      const updated = await updateTask(task.id, patch, getCurrentSlug());
+      const updated = await updateTask(task.id, patch);
       onUpdated(updated);
     } catch (e) {
       console.error(e);
diff --git a/src/lib/api.ts b/src/lib/api.ts
index f7b0f6d..5e82295 100644
--- a/src/lib/api.ts
+++ b/src/lib/api.ts
@@ -176,9 +176,8 @@ export async function createTask(projectSlug: string, data: Partial<Task>): Prom
   });
 }
 
-export async function updateTask(taskId: string, data: Partial<Task>, actor?: string): Promise<Task> {
-  const qs = actor ? `?actor=${encodeURIComponent(actor)}` : "";
-  return request(`/api/v1/tasks/${taskId}${qs}`, { method: "PATCH", body: JSON.stringify(data) });
+export async function updateTask(taskId: string, data: Partial<Task>): Promise<Task> {
+  return request(`/api/v1/tasks/${taskId}`, { method: "PATCH", body: JSON.stringify(data) });
 }
 
 export async function deleteTask(taskId: string): Promise<void> {