diff --git a/templates/teams/private.html b/templates/teams/private.html
index 70fb865..bf3dac7 100644
--- a/templates/teams/private.html
+++ b/templates/teams/private.html
@@ -386,7 +386,7 @@ <h3>{% trans %}Solves{% endtrans %}</h3>
             <thead>
             <tr>
               <th>{% trans %}Challenge{% endtrans %}</th>
-              <th class="d-none d-md-block d-lg-block">{% trans %}Category{% endtrans %}</th>
+              <th class="d-none d-md-table-cell d-lg-table-cell">{% trans %}Category{% endtrans %}</th>
               <th>{% trans %}Value{% endtrans %}</th>
               <th>{% trans %}Time{% endtrans %}</th>
             </tr>
@@ -400,7 +400,7 @@ <h3>{% trans %}Solves{% endtrans %}</h3>
                     {{ solve.challenge.name }}
                   </a>
                 </td>
-                <td class="d-none d-md-block d-lg-block">{{ solve.challenge.category }}</td>
+                <td class="d-none d-md-table-cell d-lg-table-cell">{{ solve.challenge.category }}</td>
                 <td>{{ solve.challenge.value }}</td>
                 <td class="solve-time">
                   <span data-time="{{ solve.date | isoformat }}">{{ solve.date }}</span>
diff --git a/templates/teams/public.html b/templates/teams/public.html
index 5f57431..1a05ef6 100644
--- a/templates/teams/public.html
+++ b/templates/teams/public.html
@@ -155,7 +155,7 @@ <h3>{% trans %}Solves{% endtrans %}</h3>
             <thead>
             <tr>
               <th class="text-center">{% trans %}Challenge{% endtrans %}</th>
-              <th class="d-none d-md-block d-lg-block">{% trans %}Category{% endtrans %}</th>
+              <th class="d-none d-md-table-cell d-lg-table-cell">{% trans %}Category{% endtrans %}</th>
               <th>{% trans %}Value{% endtrans %}</th>
               <th>{% trans %}Time{% endtrans %}</th>
             </tr>
@@ -168,7 +168,7 @@ <h3>{% trans %}Solves{% endtrans %}</h3>
                     {{ solve.challenge.name }}
                   </a>
                 </td>
-                <td class="d-none d-md-block d-lg-block">{{ solve.challenge.category }}</td>
+                <td class="d-none d-md-table-cell d-lg-table-cell">{{ solve.challenge.category }}</td>
                 <td>{{ solve.challenge.value }}</td>
                 <td class="solve-time">
                   <span data-time="{{ solve.date | isoformat }}"></span>
diff --git a/templates/users/private.html b/templates/users/private.html
index ff6eda6..333fd7f 100644
--- a/templates/users/private.html
+++ b/templates/users/private.html
@@ -122,7 +122,7 @@ <h3>{% trans %}Solves{% endtrans %}</h3>
             <thead>
             <tr>
               <th>{% trans %}Challenge{% endtrans %}</th>
-              <th class="d-none d-md-block d-lg-block">{% trans %}Category{% endtrans %}</th>
+              <th class="d-none d-md-table-cell d-lg-table-cell">{% trans %}Category{% endtrans %}</th>
               <th>{% trans %}Value{% endtrans %}</th>
               <th>{% trans %}Time{% endtrans %}</th>
             </tr>
@@ -135,7 +135,7 @@ <h3>{% trans %}Solves{% endtrans %}</h3>
                     {{ solve.challenge.name }}
                   </a>
                 </td>
-                <td class="d-none d-md-block d-lg-block">{{ solve.challenge.category }}</td>
+                <td class="d-none d-md-table-cell d-lg-table-cell">{{ solve.challenge.category }}</td>
                 <td>{{ solve.challenge.value }}</td>
                 <td class="solve-time">
                   <span data-time="{{ solve.date | isoformat }}"></span>
diff --git a/templates/users/public.html b/templates/users/public.html
index c43abdc..0596a4c 100644
--- a/templates/users/public.html
+++ b/templates/users/public.html
@@ -121,7 +121,7 @@ <h3>Solves</h3>
             <thead>
             <tr>
               <th>{% trans %}Challenge{% endtrans %}</th>
-              <th class="d-none d-md-block d-lg-block">{% trans %}Category{% endtrans %}</th>
+              <th class="d-none d-md-table-cell d-lg-table-cell">{% trans %}Category{% endtrans %}</th>
               <th>{% trans %}Value{% endtrans %}</th>
               <th>{% trans %}Time{% endtrans %}</th>
             </tr>
@@ -134,7 +134,7 @@ <h3>Solves</h3>
                     {{ solve.challenge.name }}
                   </a>
                 </td>
-                <td class="d-none d-md-block d-lg-block">{{ solve.challenge.category }}</td>
+                <td class="d-none d-md-table-cell d-lg-table-cell">{{ solve.challenge.category }}</td>
                 <td>{{ solve.challenge.value }}</td>
                 <td class="solve-time">
                   <span data-time="{{ solve.date | isoformat }}"></span>