diff --git a/osinaweb/osinacore/api/views.py b/osinaweb/osinacore/api/views.py
index 359a45b1..61a8726f 100644
--- a/osinaweb/osinacore/api/views.py
+++ b/osinaweb/osinacore/api/views.py
@@ -4,7 +4,7 @@ from rest_framework.decorators import api_view
 from rest_framework.response import Response
 from osinacore.models import *
 from .serializers import *
-from django.shortcuts import get_object_or_404
+
 
 @api_view(['POST'])
 def register_customer(request):
diff --git a/osinaweb/osinacore/templates/epic-fetched-tasks.html b/osinaweb/osinacore/templates/epic-fetched-tasks.html
index 589ea493..076c925a 100644
--- a/osinaweb/osinacore/templates/epic-fetched-tasks.html
+++ b/osinaweb/osinacore/templates/epic-fetched-tasks.html
@@ -128,7 +128,7 @@
 
                     <button
                         class="p-2 border border-gray-200 text-base h-[70px] bg-gray-100 text-gray-500 rounded-br-md timelineButton"
-                        data-modal-url="{% url 'timeline' %}">Timeline</button>
+                        data-modal-url="{% url 'timeline' task.task_id %}">Timeline</button>
                 </div>
             </div>
         </div>
@@ -231,7 +231,7 @@
                 </a>
 
                 <button class="p-2 border border-gray-200 text-sm h-[70px] bg-gray-100 text-gray-500 timelineButton"
-                    data-modal-url="{% url 'timeline' %}">Timeline</button>
+                    data-modal-url="{% url 'timeline' task.task_id %}">Timeline</button>
             </div>
         </div>
     </div>
diff --git a/osinaweb/osinacore/templates/listing_pages/tasks.html b/osinaweb/osinacore/templates/listing_pages/tasks.html
index f77b6bf6..1476262c 100644
--- a/osinaweb/osinacore/templates/listing_pages/tasks.html
+++ b/osinaweb/osinacore/templates/listing_pages/tasks.html
@@ -154,7 +154,7 @@
 
                             <button
                                 class="p-2 border border-gray-200 text-base h-[70px] bg-gray-100 text-gray-500 rounded-br-md timelineButton"
-                                data-modal-url="{% url 'timeline' %}">Timeline</button>
+                                data-modal-url="{% url 'timeline' task.task_id %}">Timeline</button>
                         </div>
                     </div>
                 </div>
@@ -263,7 +263,7 @@
 
                         <button
                             class="p-2 border border-gray-200 text-sm h-[70px] bg-gray-100 text-gray-500 timelineButton"
-                            data-modal-url="{% url 'timeline' %}">Timeline</button>
+                            data-modal-url="{% url 'timeline' task.task_id %}">Timeline</button>
                     </div>
                 </div>
             </div>
diff --git a/osinaweb/osinacore/templates/project-open-tasks.html b/osinaweb/osinacore/templates/project-open-tasks.html
index 01772040..895d6f6f 100644
--- a/osinaweb/osinacore/templates/project-open-tasks.html
+++ b/osinaweb/osinacore/templates/project-open-tasks.html
@@ -109,7 +109,7 @@
 
                     <button
                         class="p-2 border border-gray-200 text-base h-[70px] bg-gray-100 text-gray-500 rounded-br-md timelineButton"
-                        data-modal-url="{% url 'timeline' %}">Timeline</button>
+                        data-modal-url="{% url 'timeline' task.task_id %}">Timeline</button>
                 </div>
             </div>
         </div>
@@ -213,7 +213,7 @@
                 </a>
 
                 <button class="p-2 border border-gray-200 text-sm h-[70px] bg-gray-100 text-gray-500 timelineButton"
-                    data-modal-url="{% url 'timeline' %}">Timeline</button>
+                    data-modal-url="{% url 'timeline' task.task_id %}">Timeline</button>
             </div>
         </div>
     </div>