diff --git a/resources/views/list/accounts.blade.php b/resources/views/list/accounts.blade.php
index 1842783530..1942217ab8 100644
--- a/resources/views/list/accounts.blade.php
+++ b/resources/views/list/accounts.blade.php
@@ -8,7 +8,7 @@
         @endif
         <th>Current balance</th>
         <th>Active</th>
-        <th data-dateformat="D MMMM YYYY">Last activity</th>
+        <th data-dateformat="YYYY-MM-DD">Last activity</th>
         <th>Balance difference between {{Session::get('start')->format('jS F Y')}} and {{Session::get('end')->format('jS F Y')}}</th>
     </tr>
     </thead>
@@ -41,7 +41,7 @@
             @endif
         </td>
             @if($account->lastActivityDate)
-                <td>
+                <td data-value="{{$account->lastActivityDate->format('Y-m-d')}}">
                     {{{$account->lastActivityDate->format('j F Y')}}}
                 </td>
             @else
diff --git a/resources/views/list/categories.blade.php b/resources/views/list/categories.blade.php
index 3190591d56..717214af0d 100644
--- a/resources/views/list/categories.blade.php
+++ b/resources/views/list/categories.blade.php
@@ -3,7 +3,7 @@
         <tr>
             <th data-defaultsort="disabled">&nbsp;</th>
             <th>Name</th>
-            <th data-dateformat="DD-MM-YYYY">Last activity</th>
+            <th data-dateformat="YYYY-MM-DD">Last activity</th>
         </tr>
     </thead>
     <tbody>
@@ -24,7 +24,7 @@
             <a href="{{route('categories.show',$category->id)}}" title="{{{$category->name}}}">{{{$category->name}}}</a>
         </td>
         @if($category->lastActivity)
-            <td data-value="{{$category->lastActivity->format('d-m-Y')}}">
+            <td data-value="{{$category->lastActivity->format('Y-m-d')}}">
                 {{$category->lastActivity->format('jS F Y')}}
             </td>
         @else