diff --git a/frontend/src/app/ntt-gantt/ntt-gantt.component.ts b/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
index d9fd5a3..70f485a 100644
--- a/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
+++ b/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
@@ -770,9 +770,9 @@ export class NttGanttComponent implements OnInit {
    */
 
   public queryTaskbarInfo(args: any) {
-    if (args.taskbarType == 'Milestone' && args.data.taskData.TaskID.includes("D2"))
+    if (args.taskbarType == 'Milestone' && args.data.taskData.TaskID.includes("D2") && args.data.taskData.isFixed == false)
     {
-      // console.log(args.taskbarElement.children[1].style.add);
+    // console.log(args.taskbarElement.children[1].style.add);
       args.taskbarElement.children[1].classList.add('e-gantt-milestone-border1');
     // console.log(args.taskbarElement.children[1]);
     // args.taskbarElement.children[1].children[0].classList.add('e-gantt-milestone-border');
@@ -1002,7 +1002,11 @@ export class NttGanttComponent implements OnInit {
   public actionBegin(args: any) {
     if(args.requestType == 'taskbarediting'){
       if(args.taskBarEditAction == 'MilestoneDrag'){
-        if(!args.data.TaskID.includes("D2")){
+        if(args.data.TaskID.includes("D2")){
+          if(args.data.taskData.isFixed == true ) {
+            args.cancel = true;
+            }
+        }else{
           args.cancel = true;
         }
         return;
diff --git a/frontend/src/index.html b/frontend/src/index.html
index f530db0..bbe6410 100644
--- a/frontend/src/index.html
+++ b/frontend/src/index.html
@@ -33,6 +33,7 @@
      /* border-top-width: 1px; */
      color: red;
      background-color: transparent !important;
+     cursor: not-allowed;
 
     }
 
@@ -41,6 +42,7 @@
      border-radius: 30%;
      color: red;
      background-color: #9e9e9b !important;
+     cursor: grab;
 
   }
 </style>