diff --git a/.changeset/angry-pants-retire.md b/.changeset/angry-pants-retire.md
new file mode 100644
index 000000000..724b976b4
--- /dev/null
+++ b/.changeset/angry-pants-retire.md
@@ -0,0 +1,5 @@
+---
+'@rspress/theme-default': major
+---
+
+prevent hero's some fields from not being strings
diff --git a/packages/rspress-theme-default/src/theme-default/logic/utils.ts b/packages/rspress-theme-default/src/theme-default/logic/utils.ts
index c0688b17e..4a0c88e58 100644
--- a/packages/rspress-theme-default/src/theme-default/logic/utils.ts
+++ b/packages/rspress-theme-default/src/theme-default/logic/utils.ts
@@ -3,6 +3,7 @@ import React from 'react';
 import htmr from 'htmr';
 import isHtml from 'is-html';
 import { isEqualPath } from '@rspress/runtime';
+import { isNull, isNumber } from 'lodash-es';
 
 export function isActive(
   currentPath: string,
@@ -41,6 +42,10 @@ export function isMobileDevice() {
   return window.innerWidth < 768;
 }
 
-export function renderHtmlOrText(str: string) {
+export function renderHtmlOrText(str: string | number | null) {
+  if (isNull(str) || isNumber(str)) {
+    return str;
+  }
+
   return isHtml(str) ? htmr(str) : str;
 }