diff --git a/instances/templates/instances/settings_tab.html b/instances/templates/instances/settings_tab.html
index 4f213508..db38abaa 100644
--- a/instances/templates/instances/settings_tab.html
+++ b/instances/templates/instances/settings_tab.html
@@ -629,7 +629,7 @@
                             <pre class="d-none mb-0" id="xml-review-diff"></pre>
                         </div>
                         <div class="modal-footer">
-                            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                            <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                             <button type="button" class="btn btn-primary" id="xml-review-save">{% trans "Save" %}</button>
                         </div>
                     </div>
diff --git a/interfaces/templates/create_iface_block.html b/interfaces/templates/create_iface_block.html
index ece6d9c9..13402240 100644
--- a/interfaces/templates/create_iface_block.html
+++ b/interfaces/templates/create_iface_block.html
@@ -144,7 +144,7 @@
                     </div>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="create">{% trans "Create interface" %}</button>
                 </div>
             </form>
diff --git a/networks/templates/create_net_block.html b/networks/templates/create_net_block.html
index 36d7e803..9e45bbc2 100644
--- a/networks/templates/create_net_block.html
+++ b/networks/templates/create_net_block.html
@@ -123,7 +123,7 @@
                     <p class="small text-body-secondary mb-0">{% bs_icon 'info-circle' %} {% trans "The network starts at once, and with the host from then on." %}</p>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="create">{% trans "Create network" %}</button>
                 </div>
             </form>
diff --git a/networks/templates/network.html b/networks/templates/network.html
index ae9c17c4..664da13c 100644
--- a/networks/templates/network.html
+++ b/networks/templates/network.html
@@ -376,7 +376,7 @@
                     </div>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="modify_fixed_address">{% trans "Save" %}</button>
                 </div>
             </form>
@@ -403,7 +403,7 @@
                     </div>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="modify_dhcp_range">{% trans "Save" %}</button>
                 </div>
             </form>
@@ -442,7 +442,7 @@
                     <div class="col-12 form-text mt-1" id="qos_peak_help">{% trans "Linux applies a peak to inbound traffic only." %}</div>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="set_qos">{% trans "Save" %}</button>
                 </div>
             </form>
diff --git a/nwfilters/templates/create_nwfilter_block.html b/nwfilters/templates/create_nwfilter_block.html
index 6e015abf..5971cd9f 100644
--- a/nwfilters/templates/create_nwfilter_block.html
+++ b/nwfilters/templates/create_nwfilter_block.html
@@ -30,7 +30,7 @@
 &lt;/filter&gt;</textarea></div>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="create_nwfilter">{% trans "Create filter" %}</button>
                 </div>
             </form>
diff --git a/nwfilters/templates/nwfilter.html b/nwfilters/templates/nwfilter.html
index 3aef4827..bd25340b 100644
--- a/nwfilters/templates/nwfilter.html
+++ b/nwfilters/templates/nwfilter.html
@@ -177,7 +177,7 @@
 &lt;/rule&gt;</textarea></div>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="add_nwfilter_rule">{% trans "Add rule" %}</button>
                 </div>
             </form>
diff --git a/nwfilters/templates/nwfilters.html b/nwfilters/templates/nwfilters.html
index 69e37c90..2a7e0f5a 100644
--- a/nwfilters/templates/nwfilters.html
+++ b/nwfilters/templates/nwfilters.html
@@ -91,7 +91,7 @@
                         <div class="form-text" id="clone_name_help">{% trans "Letters, digits, dots, dashes and underscores. The copy has the filter's rules and references." %}</div>
                     </div>
                     <div class="modal-footer">
-                        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                        <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                         <button type="submit" class="btn btn-primary" name="cln_nwfilter">{% trans "Clone" %}</button>
                     </div>
                 </form>
diff --git a/storages/templates/create_stg_block.html b/storages/templates/create_stg_block.html
index 93a9e7d9..372cb7da 100644
--- a/storages/templates/create_stg_block.html
+++ b/storages/templates/create_stg_block.html
@@ -180,7 +180,7 @@
                     <p class="small text-body-secondary mb-0">{% bs_icon 'info-circle' %} {% trans "The pool starts at once, and with the host from then on." %}</p>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="create">{% trans "Create pool" %}</button>
                 </div>
             </form>
diff --git a/virtsecrets/templates/create_secret_block.html b/virtsecrets/templates/create_secret_block.html
index ecc20a5d..691f4673 100644
--- a/virtsecrets/templates/create_secret_block.html
+++ b/virtsecrets/templates/create_secret_block.html
@@ -45,7 +45,7 @@
                     </div>
                 </div>
                 <div class="modal-footer">
-                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                     <button type="submit" class="btn btn-primary" name="create">{% trans "Create secret" %}</button>
                 </div>
             </form>
diff --git a/virtsecrets/templates/secrets.html b/virtsecrets/templates/secrets.html
index ded094d9..a06f566f 100644
--- a/virtsecrets/templates/secrets.html
+++ b/virtsecrets/templates/secrets.html
@@ -104,7 +104,7 @@
                         <div class="form-text" id="set_value_note" hidden>{% trans "It replaces the old value at once; what a passphrase encrypted is not encrypted anew." %}</div>
                     </div>
                     <div class="modal-footer">
-                        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                        <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
                         <button type="submit" class="btn btn-primary" name="set_value">{% trans "Set value" %}</button>
                     </div>
                 </form>