diff --git a/complex-types.d.ts b/complex-types.d.ts
index 530c4bc..ce537bf 100644
--- a/complex-types.d.ts
+++ b/complex-types.d.ts
@@ -11,3 +11,12 @@ declare module 'mdast' {
     mdxjsEsm: MdxjsEsm
   }
 }
+
+declare module 'hast' {
+  interface RootContentMap {
+    mdxjsEsm: MdxjsEsm
+  }
+  interface ElementContentMap {
+    mdxjsEsm: MdxjsEsm
+  }
+}
diff --git a/package.json b/package.json
index efd6156..c1446b3 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
   ],
   "dependencies": {
     "@types/estree-jsx": "^0.0.1",
+    "@types/hast": "^2.0.0",
     "@types/mdast": "^3.0.0",
     "mdast-util-from-markdown": "^1.0.0",
     "mdast-util-to-markdown": "^1.0.0"