diff --git a/.github/ISSUE_TEMPLATE/formatting.md b/.github/ISSUE_TEMPLATE/formatting.md
index f7331818c..5d6d3a27f 100644
--- a/.github/ISSUE_TEMPLATE/formatting.md
+++ b/.github/ISSUE_TEMPLATE/formatting.md
@@ -26,7 +26,7 @@ Don't fill the form below manually! Let a program create a report for you:
 
 -->
 
-**Prettier 3.9.0**
+**Prettier 3.9.1**
 [Playground link](https://prettier.io/playground/#.....)
 
 ```sh
diff --git a/.github/ISSUE_TEMPLATE/integration.md b/.github/ISSUE_TEMPLATE/integration.md
index f88bd091c..0cdaaa6ec 100644
--- a/.github/ISSUE_TEMPLATE/integration.md
+++ b/.github/ISSUE_TEMPLATE/integration.md
@@ -20,7 +20,7 @@ BEFORE SUBMITTING AN ISSUE:
 
 **Environments:**
 
-- Prettier Version: 3.9.0
+- Prettier Version: 3.9.1
 - Running Prettier via: <!-- CLI, Node.js API, Browser API, etc. -->
 - Runtime: <!-- Node.js v14, Chrome v83, etc. -->
 - Operating System: <!-- Windows, Linux, macOS, etc. -->
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fab879528..889a1f80d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# 3.9.1
+
+[diff](https://github.com/prettier/prettier/compare/3.9.0...3.9.1)
+
+#### CLI: Fix ignored file has been cached incorrectly ([#19483](https://github.com/prettier/prettier/pull/19483) by [@kovsu](https://github.com/kovsu))
+
+Bug details https://github.com/prettier/prettier/issues/18016
+
 # 3.9.0
 
 [diff](https://github.com/prettier/prettier/compare/3.8.5...3.9.0)
diff --git a/package.json b/package.json
index 378c51ec9..8924dc897 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "prettier",
-  "version": "3.10.0-dev",
+  "version": "3.9.1",
   "description": "Prettier is an opinionated code formatter",
   "bin": "./bin/prettier.cjs",
   "repository": "prettier/prettier",
diff --git a/website/versioned_docs/version-stable/browser.md b/website/versioned_docs/version-stable/browser.md
index b3a8824aa..aeb13c183 100644
--- a/website/versioned_docs/version-stable/browser.md
+++ b/website/versioned_docs/version-stable/browser.md
@@ -21,7 +21,7 @@ Required options:
 
 - **[`parser`](options.md#parser) (or [`filepath`](options.md#file-path))**: One of these options has to be specified for Prettier to know which parser to use.
 
-- **`plugins`**: Unlike the `format` function from the [Node.js-based API](api.md#prettierformatsource-options), this function doesn’t load plugins automatically. The `plugins` option is required because all the parsers included in the Prettier package come as plugins (for reasons of file size). These plugins are files in [https://unpkg.com/browse/prettier@3.9.0/plugins](https://unpkg.com/browse/prettier@3.9.0/plugins). Note that `estree` plugin should be loaded when printing JavaScript, TypeScript, Flow, or JSON.
+- **`plugins`**: Unlike the `format` function from the [Node.js-based API](api.md#prettierformatsource-options), this function doesn’t load plugins automatically. The `plugins` option is required because all the parsers included in the Prettier package come as plugins (for reasons of file size). These plugins are files in [https://unpkg.com/browse/prettier@3.9.1/plugins](https://unpkg.com/browse/prettier@3.9.1/plugins). Note that `estree` plugin should be loaded when printing JavaScript, TypeScript, Flow, or JSON.
 
   You need to load the ones that you’re going to use and pass them to `prettier.format` using the `plugins` option.
 
@@ -32,8 +32,8 @@ See below for examples.
 ### Global
 
 ```html
-<script src="https://unpkg.com/prettier@3.9.0/standalone.js"></script>
-<script src="https://unpkg.com/prettier@3.9.0/plugins/graphql.js"></script>
+<script src="https://unpkg.com/prettier@3.9.1/standalone.js"></script>
+<script src="https://unpkg.com/prettier@3.9.1/plugins/graphql.js"></script>
 <script>
   (async () => {
     const formatted = await prettier.format("type Query { hello: String }", {
@@ -50,8 +50,8 @@ Note that the [`unpkg` field](https://unpkg.com/#examples) in Prettier’s `pack
 
 ```html
 <script type="module">
-  import * as prettier from "https://unpkg.com/prettier@3.9.0/standalone.mjs";
-  import * as prettierPluginGraphql from "https://unpkg.com/prettier@3.9.0/plugins/graphql.mjs";
+  import * as prettier from "https://unpkg.com/prettier@3.9.1/standalone.mjs";
+  import * as prettierPluginGraphql from "https://unpkg.com/prettier@3.9.1/plugins/graphql.mjs";
 
   const formatted = await prettier.format("type Query { hello: String }", {
     parser: "graphql",
@@ -64,8 +64,8 @@ Note that the [`unpkg` field](https://unpkg.com/#examples) in Prettier’s `pack
 
 ```js
 define([
-  "https://unpkg.com/prettier@3.9.0/standalone.js",
-  "https://unpkg.com/prettier@3.9.0/plugins/graphql.js",
+  "https://unpkg.com/prettier@3.9.1/standalone.js",
+  "https://unpkg.com/prettier@3.9.1/plugins/graphql.js",
 ], async (prettier, ...plugins) => {
   const formatted = await prettier.format("type Query { hello: String }", {
     parser: "graphql",
@@ -96,8 +96,8 @@ This syntax doesn’t necessarily work in the browser, but it can be used when b
 <TabItem value="module" label="Module worker">
 
 ```js
-import * as prettier from "https://unpkg.com/prettier@3.9.0/standalone.mjs";
-import * as prettierPluginGraphql from "https://unpkg.com/prettier@3.9.01/plugins/graphql.mjs";
+import * as prettier from "https://unpkg.com/prettier@3.9.1/standalone.mjs";
+import * as prettierPluginGraphql from "https://unpkg.com/prettier@3.9.11/plugins/graphql.mjs";
 
 const formatted = await prettier.format("type Query { hello: String }", {
   parser: "graphql",
@@ -110,8 +110,8 @@ const formatted = await prettier.format("type Query { hello: String }", {
 
 ```js
 importScripts(
-  "https://unpkg.com/prettier@3.9.0/standalone.js",
-  "https://unpkg.com/prettier@3.9.0/plugins/graphql.js",
+  "https://unpkg.com/prettier@3.9.1/standalone.js",
+  "https://unpkg.com/prettier@3.9.1/plugins/graphql.js",
 );
 
 (async () => {
@@ -131,9 +131,9 @@ If you want to format [embedded code](options.md#embedded-language-formatting),
 
 ```html
 <script type="module">
-  import * as prettier from "https://unpkg.com/prettier@3.9.0/standalone.mjs";
-  import * as prettierPluginBabel from "https://unpkg.com/prettier@3.9.0/plugins/babel.mjs";
-  import * as prettierPluginEstree from "https://unpkg.com/prettier@3.9.0/plugins/estree.mjs";
+  import * as prettier from "https://unpkg.com/prettier@3.9.1/standalone.mjs";
+  import * as prettierPluginBabel from "https://unpkg.com/prettier@3.9.1/plugins/babel.mjs";
+  import * as prettierPluginEstree from "https://unpkg.com/prettier@3.9.1/plugins/estree.mjs";
 
   console.log(
     await prettier.format("const html=/* HTML */ `<DIV> </DIV>`", {
@@ -149,10 +149,10 @@ The HTML code embedded in JavaScript stays unformatted because the `html` parser
 
 ```html
 <script type="module">
-  import * as prettier from "https://unpkg.com/prettier@3.9.0/standalone.mjs";
-  import * as prettierPluginBabel from "https://unpkg.com/prettier@3.9.0/plugins/babel.mjs";
-  import * as prettierPluginEstree from "https://unpkg.com/prettier@3.9.0/plugins/estree.mjs";
-  import * as prettierPluginHtml from "https://unpkg.com/prettier@3.9.0/plugins/html.mjs";
+  import * as prettier from "https://unpkg.com/prettier@3.9.1/standalone.mjs";
+  import * as prettierPluginBabel from "https://unpkg.com/prettier@3.9.1/plugins/babel.mjs";
+  import * as prettierPluginEstree from "https://unpkg.com/prettier@3.9.1/plugins/estree.mjs";
+  import * as prettierPluginHtml from "https://unpkg.com/prettier@3.9.1/plugins/html.mjs";
 
   console.log(
     await prettier.format("const html=/* HTML */ `<DIV> </DIV>`", {
diff --git a/website/versioned_docs/version-stable/install.md b/website/versioned_docs/version-stable/install.md
index e8d4f6e16..5a916dcaa 100644
--- a/website/versioned_docs/version-stable/install.md
+++ b/website/versioned_docs/version-stable/install.md
@@ -12,35 +12,35 @@ First, install Prettier locally:
 <TabItem value="npm">
 
 ```bash
-npm install --save-dev --save-exact prettier@3.9.0
+npm install --save-dev --save-exact prettier@3.9.1
 ```
 
 </TabItem>
 <TabItem value="yarn">
 
 ```bash
-yarn add --dev --exact prettier@3.9.0
+yarn add --dev --exact prettier@3.9.1
 ```
 
 </TabItem>
 <TabItem value="pnpm">
 
 ```bash
-pnpm add --save-dev --save-exact prettier@3.9.0
+pnpm add --save-dev --save-exact prettier@3.9.1
 ```
 
 </TabItem>
 <TabItem value="bun">
 
 ```bash
-bun add --dev --exact prettier@3.9.0
+bun add --dev --exact prettier@3.9.1
 ```
 
 </TabItem>
 <TabItem value="deno">
 
 ```bash
-deno install --dev --save-exact prettier@3.9.0
+deno install --dev --save-exact prettier@3.9.1
 ```
 
 </TabItem>
diff --git a/website/versioned_docs/version-stable/sharing-configurations.md b/website/versioned_docs/version-stable/sharing-configurations.md
index 7798632c2..265c0635d 100644
--- a/website/versioned_docs/version-stable/sharing-configurations.md
+++ b/website/versioned_docs/version-stable/sharing-configurations.md
@@ -46,7 +46,7 @@ Example `package.json`:
     "prettier": ">=3.0.0"
   },
   "devDependencies": {
-    "prettier": "3.9.0"
+    "prettier": "3.9.1"
   }
 }
 ```
@@ -193,7 +193,7 @@ export default config;
     "prettier": ">=3.0.0"
   },
   "devDependencies": {
-    "prettier": "3.9.0"
+    "prettier": "3.9.1"
   }
 }
 ```