diff --git a/lib/index.mjs b/lib/index.mjs
index 8a8af9d..a436b22 100644
--- a/lib/index.mjs
+++ b/lib/index.mjs
@@ -8,7 +8,7 @@ import ParserBlock from './parser_block.mjs'
 import ParserInline from './parser_inline.mjs'
 import LinkifyIt from 'linkify-it'
 import * as mdurl from 'mdurl'
-import punycode from 'punycode.js'
+import punycode from 'punycode.js/'
 
 import cfg_default from './presets/default.mjs'
 import cfg_zero from './presets/zero.mjs'