diff --git a/core/server/data/xml/sitemap/base-generator.js b/core/server/data/xml/sitemap/base-generator.js
index 9ae755a761..98c0dc90ef 100644
--- a/core/server/data/xml/sitemap/base-generator.js
+++ b/core/server/data/xml/sitemap/base-generator.js
@@ -65,7 +65,13 @@ class BaseSiteMapGenerator {
     }
 
     getLastModifiedForDatum(datum) {
-        return datum.updated_at || datum.published_at || datum.created_at;
+        if (datum.updated_at || datum.published_at || datum.created_at) {
+            const modifiedDate = datum.updated_at || datum.published_at || datum.created_at;
+
+            return moment(modifiedDate);
+        } else {
+            return moment();
+        }
     }
 
     updateLastModified(datum) {
diff --git a/core/server/services/url/configs/v0.1.js b/core/server/services/url/configs/v0.1.js
index 35172938f3..55fa266a76 100644
--- a/core/server/services/url/configs/v0.1.js
+++ b/core/server/services/url/configs/v0.1.js
@@ -27,7 +27,6 @@ module.exports = [
                 'twitter_title',
                 'twitter_description',
                 'custom_template',
-                'feature_image',
                 'locale'
             ],
             withRelated: ['tags', 'authors'],
@@ -68,7 +67,6 @@ module.exports = [
                 'twitter_title',
                 'twitter_description',
                 'custom_template',
-                'feature_image',
                 'locale',
                 'tags',
                 'authors',
diff --git a/core/server/services/url/configs/v2.js b/core/server/services/url/configs/v2.js
index f7384650e6..6d91c3a483 100644
--- a/core/server/services/url/configs/v2.js
+++ b/core/server/services/url/configs/v2.js
@@ -30,7 +30,6 @@ module.exports = [
                 'twitter_title',
                 'twitter_description',
                 'custom_template',
-                'feature_image',
                 'locale'
             ],
             withRelated: ['tags', 'authors'],
@@ -74,7 +73,6 @@ module.exports = [
                 'twitter_title',
                 'twitter_description',
                 'custom_template',
-                'feature_image',
                 'locale',
                 'tags',
                 'authors',
@@ -98,9 +96,7 @@ module.exports = [
                 'description',
                 'meta_title',
                 'meta_description',
-                'parent_id',
-                'created_at',
-                'updated_at'
+                'parent_id'
             ],
             filter: 'visibility:public',
             shouldHavePosts: {