diff --git a/airlock/file_browser_api.py b/airlock/file_browser_api.py
index 4d9c91fb..8f8ec96c 100644
--- a/airlock/file_browser_api.py
+++ b/airlock/file_browser_api.py
@@ -190,9 +190,6 @@ def is_withdrawn(self):
     def is_valid(self):
         return is_valid_file_type(Path(self.relpath))
 
-    def is_updated(self):
-        return self.workspace_status == WorkspaceFileStatus.CONTENT_UPDATED
-
     def html_classes(self):
         """Semantic html classes for this PathItem.
 
diff --git a/airlock/templates/file_browser/_includes/directory_table/workspace.html b/airlock/templates/file_browser/_includes/directory_table/workspace.html
index 28105c34..60961c76 100644
--- a/airlock/templates/file_browser/_includes/directory_table/workspace.html
+++ b/airlock/templates/file_browser/_includes/directory_table/workspace.html
@@ -31,7 +31,7 @@
         <td>{{ path.modified_at|date:"Y-m-d H:i" }}</td>
         {% if workspace.is_active and multiselect_add %}
           <td>
-            {% if not path.is_directory and not path.is_updated %}
+            {% if not path.is_directory %}
               {% form_checkbox name="selected" value=path.relpath custom_field=True %}
             {% endif %}
           </td>
diff --git a/airlock/templates/file_browser/directory.html b/airlock/templates/file_browser/directory.html
index d6257fa3..d3388378 100644
--- a/airlock/templates/file_browser/directory.html
+++ b/airlock/templates/file_browser/directory.html
@@ -26,7 +26,12 @@
       {% if multiselect_add %}
         <div class="div flex flex-col items-start gap-4">
           <div class="flex items-center gap-2">
-            {% #button type="submit" name="action" value="add_files" variant="success" form="multiselect_form"%}Add Files to Request{% /button %}
+            {% #button type="submit" name="action" value="add_files" variant="success" form="multiselect_form"%}
+              Add Files to Request
+            {% /button %}
+            {% #button type="submit" name="action" value="update_files" variant="success" form="multiselect_form"%}
+              Update Files in Request
+            {% /button %}
           </div>
           <div id="multiselect_modal"></div>
         </div>
diff --git a/airlock/views/workspace.py b/airlock/views/workspace.py
index b74ae803..6c7c246f 100644
--- a/airlock/views/workspace.py
+++ b/airlock/views/workspace.py
@@ -217,8 +217,6 @@ def multiselect_add_files(request, multiform, workspace):
         state = workspace.get_workspace_file_status(relpath)
         if policies.can_add_file_to_request(workspace, relpath):
             files_to_add.append(f)
-        elif state == WorkspaceFileStatus.CONTENT_UPDATED:
-            files_ignored[f] = "cannot update using the add dialogue"
         elif state == WorkspaceFileStatus.RELEASED:
             files_ignored[f] = "already released"
         else:
diff --git a/tests/functional/test_e2e.py b/tests/functional/test_e2e.py
index 2a45440e..2a8ef1ee 100644
--- a/tests/functional/test_e2e.py
+++ b/tests/functional/test_e2e.py
@@ -1,5 +1,6 @@
 import re
 
+import pytest
 from playwright.sync_api import expect
 
 from airlock.business_logic import bll
@@ -454,7 +455,11 @@ def test_e2e_release_files(
     expect(page.locator("body")).not_to_contain_text("test-workspace by researcher")
 
 
-def test_e2e_update_file(page, live_server, dev_users):
+@pytest.mark.parametrize(
+    "multiselect",
+    [True, False],
+)
+def test_e2e_update_file(page, live_server, dev_users, multiselect):
     """
     Test researcher updates a modified file in a returned request
     """
@@ -471,20 +476,26 @@ def test_e2e_update_file(page, live_server, dev_users):
         ],
     )
 
-    # change the file on disk
+    # Log in as researcher
+    login_as(live_server, page, "researcher")
+
     workspace = bll.get_workspace("test-workspace", author)
+
+    # change the file on disk
     factories.write_workspace_file(workspace, path, contents="changed")
 
-    # Log in as researcher
-    login_as(live_server, page, "researcher")
+    if multiselect:
+        page.goto(live_server.url + workspace.get_url("subdir/"))
 
-    page.goto(live_server.url + workspace.get_url("subdir/file.txt"))
+        # click on the multi-select checkbox
+        find_and_click(page.locator('input[name="selected"]'))
+    else:
+        page.goto(live_server.url + workspace.get_url("subdir/file.txt"))
 
-    # Update file in request
     # Find the add file button and click on it to open the modal
     find_and_click(page.locator("button[value=update_files]"))
 
-    # Click the button to add the file to a release request
+    # Click the button to update the file in the release request
     find_and_click(page.get_by_role("form").locator("#update-file-button"))
 
     expect(page.locator("body")).to_contain_text("file has been updated in request")
diff --git a/tests/integration/views/test_workspace.py b/tests/integration/views/test_workspace.py
index 22aca44c..ef86bde3 100644
--- a/tests/integration/views/test_workspace.py
+++ b/tests/integration/views/test_workspace.py
@@ -637,8 +637,7 @@ def test_workspace_multiselect_add_files_updated_file(airlock_client, bll):
     assert response.status_code == 200
     assert "test/path1.txt" in response.rendered_content
     assert "test/path2.txt" in response.rendered_content
-    assert response.rendered_content.count("cannot update using the add dialogue") == 1
-    assert response.rendered_content.count("already in group") == 1
+    assert response.rendered_content.count("already in group") == 2
     assert 'name="filegroup"' not in response.rendered_content