diff --git a/src/posts/parse.js b/src/posts/parse.js
index 62cc76b9c8..2b7d5081d4 100644
--- a/src/posts/parse.js
+++ b/src/posts/parse.js
@@ -27,13 +27,10 @@ let sanitizeConfig = {
 		source: ['type', 'src', 'srcset', 'sizes', 'media', 'height', 'width'],
 		embed: ['height', 'src', 'type', 'width'],
 	},
-	globalAttributes: ['accesskey', 'class', 'contenteditable', 'dir',
+	nonBooleanAttributes: ['accesskey', 'class', 'contenteditable', 'dir',
 		'draggable', 'dropzone', 'hidden', 'id', 'lang', 'spellcheck', 'style',
-		'tabindex', 'title', 'translate', 'aria-expanded', 'data-*',
+		'tabindex', 'title', 'translate', 'aria-*', 'data-*',
 	],
-	allowedClasses: {
-		...sanitize.defaults.allowedClasses,
-	},
 };
 const allowedTypes = new Set(['default', 'plaintext', 'activitypub.note', 'activitypub.article']);
 
@@ -133,7 +130,7 @@ module.exports = function (Posts) {
 		sanitizeConfig.allowedTags.forEach((tag) => {
 			sanitizeConfig.allowedAttributes[tag] = _.union(
 				sanitizeConfig.allowedAttributes[tag],
-				sanitizeConfig.globalAttributes
+				sanitizeConfig.nonBooleanAttributes
 			);
 		});