diff --git a/ghost/core/core/server/data/migrations/versions/5.15/2022-09-12-16-10-add-posts-lexical-column.js b/ghost/core/core/server/data/migrations/versions/5.15/2022-09-12-16-10-add-posts-lexical-column.js
new file mode 100644
index 0000000000..3d13e7bcd0
--- /dev/null
+++ b/ghost/core/core/server/data/migrations/versions/5.15/2022-09-12-16-10-add-posts-lexical-column.js
@@ -0,0 +1,8 @@
+const {createAddColumnMigration} = require('../../utils');
+
+module.exports = createAddColumnMigration('posts', 'lexical', {
+    type: 'text',
+    maxlength: 1000000000,
+    fieldtype: 'long',
+    nullable: true
+});
diff --git a/ghost/core/core/server/data/schema/schema.js b/ghost/core/core/server/data/schema/schema.js
index 8645894a3f..628a54c318 100644
--- a/ghost/core/core/server/data/schema/schema.js
+++ b/ghost/core/core/server/data/schema/schema.js
@@ -45,6 +45,7 @@ module.exports = {
         title: {type: 'string', maxlength: 2000, nullable: false, validations: {isLength: {max: 255}}},
         slug: {type: 'string', maxlength: 191, nullable: false},
         mobiledoc: {type: 'text', maxlength: 1000000000, fieldtype: 'long', nullable: true},
+        lexical: {type: 'text', maxlength: 1000000000, fieldtype: 'long', nullable: true},
         html: {type: 'text', maxlength: 1000000000, fieldtype: 'long', nullable: true},
         comment_id: {type: 'string', maxlength: 50, nullable: true},
         plaintext: {type: 'text', maxlength: 1000000000, fieldtype: 'long', nullable: true},
diff --git a/ghost/core/core/server/models/post.js b/ghost/core/core/server/models/post.js
index 18118599a2..6bc06bc8c2 100644
--- a/ghost/core/core/server/models/post.js
+++ b/ghost/core/core/server/models/post.js
@@ -974,7 +974,7 @@ Post = ghostBookshelf.Model.extend({
         return filter;
     }
 }, {
-    allowedFormats: ['mobiledoc', 'html', 'plaintext'],
+    allowedFormats: ['mobiledoc', 'lexical', 'html', 'plaintext'],
 
     orderDefaultOptions: function orderDefaultOptions() {
         return {
diff --git a/ghost/core/core/server/services/url/config.js b/ghost/core/core/server/services/url/config.js
index 3d3eaa2112..642999ac39 100644
--- a/ghost/core/core/server/services/url/config.js
+++ b/ghost/core/core/server/services/url/config.js
@@ -12,6 +12,7 @@ module.exports = [
             exclude: [
                 'title',
                 'mobiledoc',
+                'lexical',
                 'html',
                 'plaintext',
                 // @TODO: https://github.com/TryGhost/Ghost/issues/10335
@@ -55,6 +56,7 @@ module.exports = [
             exclude: [
                 'title',
                 'mobiledoc',
+                'lexical',
                 'html',
                 'plaintext',
                 // @TODO: https://github.com/TryGhost/Ghost/issues/10335
diff --git a/ghost/core/test/unit/server/data/schema/integrity.test.js b/ghost/core/test/unit/server/data/schema/integrity.test.js
index 8655f11160..5ef199756c 100644
--- a/ghost/core/test/unit/server/data/schema/integrity.test.js
+++ b/ghost/core/test/unit/server/data/schema/integrity.test.js
@@ -35,7 +35,7 @@ const validateRouteSettings = require('../../../../../core/server/services/route
  */
 describe('DB version integrity', function () {
     // Only these variables should need updating
-    const currentSchemaHash = '823828c5eafb58c0916307d41e834538';
+    const currentSchemaHash = '9cc4c1dae2237d960081d77aa4a528cc';
     const currentFixturesHash = '8cf221f0ed930ac1fe8030a58e60d64b';
     const currentSettingsHash = 'd54210758b7054e2174fd34aa2320ad7';
     const currentRoutesHash = '3d180d52c663d173a6be791ef411ed01';