diff --git a/application/views/components/cookie_notice_modal.php b/application/views/components/cookie_notice_modal.php
index 2d98910e..8f16cca1 100644
--- a/application/views/components/cookie_notice_modal.php
+++ b/application/views/components/cookie_notice_modal.php
@@ -14,7 +14,7 @@
                 <p><?= $cookie_notice_content ?></p>
             </div>
             <div class="modal-footer">
-                <button type="button" class="btn btn-outline-secondary" data-dismiss="modal">
+                <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">
                     <?= lang('close') ?>
                 </button>
             </div>
diff --git a/application/views/components/manage_appointment_modal.php b/application/views/components/manage_appointment_modal.php
index 29bf91e7..e5289479 100644
--- a/application/views/components/manage_appointment_modal.php
+++ b/application/views/components/manage_appointment_modal.php
@@ -254,7 +254,7 @@
             </div>
 
             <div class="modal-footer">
-                <button class="btn btn-outline-secondary" data-dismiss="modal">
+                <button class="btn btn-outline-secondary" data-bs-dismiss="modal">
                     <i class="fas fa-ban"></i>
                     <?= lang('cancel') ?>
                 </button>
diff --git a/application/views/components/manage_unavailable_modal.php b/application/views/components/manage_unavailable_modal.php
index f22ced27..edb0fbb7 100644
--- a/application/views/components/manage_unavailable_modal.php
+++ b/application/views/components/manage_unavailable_modal.php
@@ -70,7 +70,7 @@
                 </form>
             </div>
             <div class="modal-footer">
-                <button class="btn btn-outline-secondary" data-dismiss="modal">
+                <button class="btn btn-outline-secondary" data-bs-dismiss="modal">
                     <i class="fas fa-ban"></i>
                     <?= lang('cancel') ?>
                 </button>
diff --git a/application/views/components/privacy_policy_modal.php b/application/views/components/privacy_policy_modal.php
index ccab3084..5141967a 100644
--- a/application/views/components/privacy_policy_modal.php
+++ b/application/views/components/privacy_policy_modal.php
@@ -16,7 +16,7 @@
                 <p><?= $privacy_policy_content ?></p>
             </div>
             <div class="modal-footer">
-                <button type="button" class="btn btn-outline-secondary" data-dismiss="modal">
+                <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">
                     <?= lang('close') ?>
                 </button>
             </div>
diff --git a/application/views/components/select_google_calendar_modal.php b/application/views/components/select_google_calendar_modal.php
index 808c5518..d1d601f6 100644
--- a/application/views/components/select_google_calendar_modal.php
+++ b/application/views/components/select_google_calendar_modal.php
@@ -14,7 +14,7 @@
                 </div>
             </div>
             <div class="modal-footer">
-                <button class="btn btn-outline-secondary" data-dismiss="modal">
+                <button class="btn btn-outline-secondary" data-bs-dismiss="modal">
                     <i class="fas fa-ban me-2"></i>
                     <?= lang('cancel') ?>
                 </button>
diff --git a/application/views/components/terms_and_conditions_modal.php b/application/views/components/terms_and_conditions_modal.php
index b9295051..6730a486 100644
--- a/application/views/components/terms_and_conditions_modal.php
+++ b/application/views/components/terms_and_conditions_modal.php
@@ -15,7 +15,7 @@
                 <p><?= $terms_and_conditions_content ?></p>
             </div>
             <div class="modal-footer">
-                <button type="button" class="btn btn-outline-secondary" data-dismiss="modal">
+                <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">
                     <?= lang('close') ?>
                 </button>
             </div>
diff --git a/application/views/components/working_plan_exceptions_modal.php b/application/views/components/working_plan_exceptions_modal.php
index 2b25984e..7c085f0e 100644
--- a/application/views/components/working_plan_exceptions_modal.php
+++ b/application/views/components/working_plan_exceptions_modal.php
@@ -49,7 +49,7 @@
                 </table>
             </div>
             <div class="modal-footer">
-                <button type="button" class="btn btn-secondary" data-dismiss="modal"><?= lang('cancel') ?></button>
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal"><?= lang('cancel') ?></button>
                 <button type="button" class="btn btn-primary"
                         id="working-plan-exceptions-save"><?= lang('save') ?></button>
             </div>