diff --git a/src/plugins/sanitizeHtml.ts b/src/plugins/sanitizeHtml.ts
index 2e68bd9..bb8e57c 100644
--- a/src/plugins/sanitizeHtml.ts
+++ b/src/plugins/sanitizeHtml.ts
@@ -26,8 +26,8 @@ export function sanitizeHtmlPlugin(options?: sanitizeHtml.IOptions): Plugin {
           iframe: ["src", "width", "height"],
           a: ["href", "rel", "target"],
           "*": ["class", ...getMentionIdentityUserTargetElementAttrs()],
-          td: ["align"],
-          th: ["align"],
+          td: ["align", "colspan", "rowspan", "scope"],
+          th: ["align", "colspan", "rowspan"],
           li: ["data-list"],
           ...allowedAttributes,
         },