diff --git a/lib/ast-to-react.js b/lib/ast-to-react.js
index 975cbc40..da2cbe8f 100644
--- a/lib/ast-to-react.js
+++ b/lib/ast-to-react.js
@@ -19,7 +19,7 @@
  * @typedef {import('hast').DocType} Doctype
  * @typedef {import('property-information').Info} Info
  * @typedef {import('property-information').Schema} Schema
- * @typedef {import('./complex-types').ReactMarkdownProps} ReactMarkdownProps
+ * @typedef {import('./complex-types.js').ReactMarkdownProps} ReactMarkdownProps
  *
  * @typedef Raw
  * @property {'raw'} type
@@ -87,7 +87,7 @@
  * @property {TableRowComponent|ReactMarkdownNames} tr
  * @property {UnorderedListComponent|ReactMarkdownNames} ul
  *
- * @typedef {Partial<Omit<import('./complex-types').NormalComponents, keyof SpecialComponents> & SpecialComponents>} Components
+ * @typedef {Partial<Omit<import('./complex-types.js').NormalComponents, keyof SpecialComponents> & SpecialComponents>} Components
  *
  * @typedef Options
  * @property {boolean} [sourcePos=false]
diff --git a/test/test.jsx b/test/test.jsx
index 4e1b9341..8b06635b 100644
--- a/test/test.jsx
+++ b/test/test.jsx
@@ -1158,7 +1158,7 @@ test('should pass index of a node under its parent to components if `includeElem
 test('should be able to render components with forwardRef in HOC', () => {
   /**
    * @typedef {import('react').Ref<HTMLAnchorElement>} Ref
-   * @typedef {JSX.IntrinsicElements['a'] & import('../lib/ast-to-react').ReactMarkdownProps} Props
+   * @typedef {JSX.IntrinsicElements['a'] & import('../lib/ast-to-react.js').ReactMarkdownProps} Props
    */
 
   /**
diff --git a/tsconfig.json b/tsconfig.json
index 70285598..73fae2a1 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,19 +2,14 @@
   "include": ["lib/**/*.js", "test/**/*.jsx", "test/**/*.js", "index.js"],
   "exclude": ["**/*.min.js"],
   "compilerOptions": {
-    "target": "ES2020",
-    "lib": ["ES2020", "DOM"],
-    "module": "ES2020",
-    "moduleResolution": "node",
+    "target": "es2021",
+    "lib": ["es2020", "dom"],
+    "module": "node16",
     "jsx": "react",
-    "allowJs": true,
     "checkJs": true,
     "declaration": true,
     "emitDeclarationOnly": true,
-    "allowSyntheticDefaultImports": true,
     "skipLibCheck": true,
-    "noImplicitAny": false,
-    "noImplicitThis": true,
     "strict": true
   }
 }