diff --git a/constants.ts b/constants.ts
index 7a26e9c..7788242 100644
--- a/constants.ts
+++ b/constants.ts
@@ -1,9 +1,4 @@
 // Copyright 2018-2024 the oak authors. All rights reserved.
 
-import { contentType } from "@std/media-types/content-type";
-
 export const BODYLESS_METHODS = ["GET", "HEAD"];
-export const CONTENT_TYPE_HTML = contentType("html")!;
-export const CONTENT_TYPE_JSON = contentType("json")!;
-export const CONTENT_TYPE_TEXT = contentType("text/plain")!;
 export const NOT_ALLOWED = Symbol.for("acorn.NotAllowed");