diff --git a/src/Markdown/utils.test.ts b/src/Markdown/utils.test.ts
index 786b2285..88eeec0d 100644
--- a/src/Markdown/utils.test.ts
+++ b/src/Markdown/utils.test.ts
@@ -62,4 +62,11 @@ describe('fixMarkdownBold', () => {
     `;
     expect(fixMarkdownBold(text)).toBe(expected);
   });
+
+  it('should not have a space after a bold character other than symbols', () => {
+    expect(fixMarkdownBold('你**我**他')).toBe('你**我**他');
+    expect(fixMarkdownBold('你**我：**他')).toBe('你**我：** 他');
+    expect(fixMarkdownBold('你**我:**他')).toBe('你**我:** 他');
+    // expect(fixMarkdownBold('你**我: **他')).toBe('你**我:** 他'); // TODO: 先去掉加粗部分末尾空格，再在**后添加空格
+  });
 });
diff --git a/src/Markdown/utils.ts b/src/Markdown/utils.ts
index efa64fba..8ab862fa 100644
--- a/src/Markdown/utils.ts
+++ b/src/Markdown/utils.ts
@@ -49,9 +49,9 @@ export function fixMarkdownBold(text: string): string {
       }
       if (count === 2 && count2 % 2 === 0) {
         const prevChar = i > 0 ? text[i - 2] : '';
-        const isPrevCharAlphanumeric = /[a-zA-Z0-9]/.test(prevChar);
+        const isPrevCharSymbol = /[\p{P}\p{S}]/u.test(prevChar);
 
-        if (i + 1 < text.length && text[i + 1] !== ' ' && !isPrevCharAlphanumeric) {
+        if (i + 1 < text.length && text[i + 1] !== ' ' && isPrevCharSymbol) {
           result += '* ';
         } else {
           result += '*';
diff --git a/tsconfig.json b/tsconfig.json
index 4d734bf3..25fbee3c 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,6 +6,8 @@
     "esModuleInterop": true,
     "jsx": "react-jsx",
     "lib": ["dom", "dom.iterable", "esnext"],
+    "module": "esnext",
+    "moduleResolution": "node",
     "paths": {
       "@@/*": [".dumi/tmp/*"],
       "@/*": ["src/*"],
@@ -19,6 +21,7 @@
     "resolveJsonModule": true,
     "skipLibCheck": true,
     "strict": true,
+    "target": "es6",
     "types": ["vitest/globals"]
   },
   "exclude": ["mdx.d.ts", "brand.d.ts"],