2 files changed, 3 insertions, 3 deletions
diff --git a/.themes/classic/source/_includes/archive_post.html b/.themes/classic/source/_includes/archive_post.html
index b667b88b..fef3328e 100644
--- a/.themes/classic/source/_includes/archive_post.html
+++ b/.themes/classic/source/_includes/archive_post.html
@@ -1,6 +1,6 @@
 {% capture category %}{{ post.categories | size }}{% endcapture %}
 <h1><a href="{{ root_url }}{{ post.url }}">{{post.title}}</a></h1>
-<time datetime="{{ post.date | datetime }}" pubdate>{{ post.date | date: "<span class='month'>%b</span> <span class='day'>%d</span> <span class='year'>%Y</span>"}}</time>
+<time datetime="{{ post.date | datetime | date_to_xmlschema }}" pubdate>{{ post.date | date: "<span class='month'>%b</span> <span class='day'>%d</span> <span class='year'>%Y</span>"}}</time>
 {% if category != '0' %}
 <footer>
   <span class="categories">posted in {{ post.categories | category_links }}</span>
diff --git a/.themes/classic/source/_includes/post/date.html b/.themes/classic/source/_includes/post/date.html
index dce92472..7e328786 100644
--- a/.themes/classic/source/_includes/post/date.html
+++ b/.themes/classic/source/_includes/post/date.html
@@ -3,8 +3,8 @@
 {% capture updated %}{{ page.updated }}{{ post.updated }}{% endcapture %}
 {% capture was_updated %}{{ updated | size }}{% endcapture %}
 {% if has_date != '0' %}
-<time datetime="{{ date | datetime }}" pubdate {% if updated %} updated {% endif %}>{{ date | ordinalize }}</time>
+<time datetime="{{ date | datetime | date_to_xmlschema }}" pubdate {% if updated %} updated {% endif %}>{{ date | ordinalize }}</time>
 {% endif %}
 {% if was_updated != '0' %}
-<time class="updated" datetime="{{ updated | datetime }}">{{ updated | ordinalize }}</time>
+<time class="updated" datetime="{{ updated | datetime | date_to_xmlschema }}">{{ updated | ordinalize }}</time>
 {% endif %}