diff --git a/package.json b/package.json
index 2a57455..055ecdd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "retext-pos",
-  "version": "4.1.0",
+  "version": "5.0.0",
   "description": "retext plugin to add part-of-speech (POS) tags",
   "license": "MIT",
   "keywords": [
diff --git a/readme.md b/readme.md
index 3a5dc20..99b2aff 100644
--- a/readme.md
+++ b/readme.md
@@ -49,14 +49,14 @@ npm install retext-pos
 In Deno with [`esm.sh`][esmsh]:
 
 ```js
-import retextPos from 'https://esm.sh/retext-pos@4'
+import retextPos from 'https://esm.sh/retext-pos@5'
 ```
 
 In browsers with [`esm.sh`][esmsh]:
 
 ```html
 <script type="module">
-  import retextPos from 'https://esm.sh/retext-pos@4?bundle'
+  import retextPos from 'https://esm.sh/retext-pos@5?bundle'
 </script>
 ```