diff --git a/deno.json b/deno.json
index b7a09d0..e313f2a 100644
--- a/deno.json
+++ b/deno.json
@@ -4,11 +4,7 @@
     "lib": ["dom", "dom.iterable", "dom.asynciterable", "deno.ns"],
     "strict": true
   },
-  "importMap": {
-    "imports": {
-      "std/": "https://deno.land/std@0.220.1/"
-    }
-  },
+  "importMap": "./import_map.json",
   "tasks": {
     "start": "deno run --allow-net --allow-read --allow-env main.ts"
   }