diff --git a/edit-mode/function/humanResource.js b/edit-mode/function/humanResource.js
index d9bca06..aa0d546 100644
--- a/edit-mode/function/humanResource.js
+++ b/edit-mode/function/humanResource.js
@@ -176,7 +176,7 @@ $(document).ready(function () {
         }
         $.ajax({
             data: JSON.stringify(payload),
-            url: `${base_url}user-to-activity/add`,
+            url: `${base_url}user-to-activity/add-multiple`,
             type: "POST",
             processData: false,
             contentType: false,
@@ -206,4 +206,4 @@ $(document).ready(function () {
             }
         });
     });
-});
\ No newline at end of file
+});
diff --git a/edit-mode/index.html b/edit-mode/index.html
index b4d7bb4..b0139ee 100644
--- a/edit-mode/index.html
+++ b/edit-mode/index.html
@@ -128,7 +128,7 @@
 						<div class="form-row">
 							<div class="col-md-10 form-group">
 								<label>Human Resource</label>
-								<select id="select-hr" name="user_id" class="form-control form-control-sm" style="width:100%;"></select>
+								<select id="select-hr" name="user_id[]" multiple="multiple" class="form-control form-control-sm" style="width:100%;"></select>
 							</div>
 							<div class="col-md-2 form-group">
 								<button style="margin-top: 31px;" id="btn-assign-hr" type="submit"