diff --git a/package.json b/package.json
index 2be9538..6b17c01 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "micromark-extension-gfm-footnote",
-  "version": "1.1.2",
+  "version": "2.0.0",
   "description": "micromark extension to support GFM footnotes",
   "license": "MIT",
   "keywords": [
diff --git a/readme.md b/readme.md
index a31dc87..482369e 100644
--- a/readme.md
+++ b/readme.md
@@ -77,14 +77,14 @@ npm install micromark-extension-gfm-footnote
 In Deno with [`esm.sh`][esmsh]:
 
 ```js
-import {gfmFootnote, gfmFootnoteHtml} from 'https://esm.sh/micromark-extension-gfm-footnote@1'
+import {gfmFootnote, gfmFootnoteHtml} from 'https://esm.sh/micromark-extension-gfm-footnote@2'
 ```
 
 In browsers with [`esm.sh`][esmsh]:
 
 ```html
 <script type="module">
-  import {gfmFootnote, gfmFootnoteHtml} from 'https://esm.sh/micromark-extension-gfm-footnote@1?bundle'
+  import {gfmFootnote, gfmFootnoteHtml} from 'https://esm.sh/micromark-extension-gfm-footnote@2?bundle'
 </script>
 ```