diff --git a/packages/govuk-frontend/src/govuk/components/checkboxes/template.njk b/packages/govuk-frontend/src/govuk/components/checkboxes/template.njk
index 793f6edf40..49ebb9bd23 100644
--- a/packages/govuk-frontend/src/govuk/components/checkboxes/template.njk
+++ b/packages/govuk-frontend/src/govuk/components/checkboxes/template.njk
@@ -43,8 +43,7 @@
}) | indent(2) | trim }}
{% endif %}
+ {%- for attribute, value in params.attributes %} {{ attribute }}="{{ value }}"{% endfor %} data-module="govuk-checkboxes">
{% for item in params.items %}
{% if item %}
{#- If the user explicitly sets an id, use this instead of the regular idPrefix -#}
diff --git a/packages/govuk-frontend/src/govuk/components/notification-banner/template.njk b/packages/govuk-frontend/src/govuk/components/notification-banner/template.njk
index 6ff8e71862..2d17fe01ef 100644
--- a/packages/govuk-frontend/src/govuk/components/notification-banner/template.njk
+++ b/packages/govuk-frontend/src/govuk/components/notification-banner/template.njk
@@ -26,9 +26,7 @@
{% set title = "Important" %}
{%- endif -%}
-