diff --git a/README.md b/README.md
index 0bd1994..9dd2647 100644
--- a/README.md
+++ b/README.md
@@ -57,54 +57,58 @@ jobs:
 ```
 
 <!-- action-docs-inputs action="action.yml" -->
+
 ## Inputs
 
-| name | description | required | default |
-| --- | --- | --- | --- |
-| `working-directory` | <p>Working directory for run commands</p> | `false` | `.` |
-| `stack-yaml` | <p>Override stack.yaml, relative to working-directory</p> | `false` | `stack.yaml` |
-| `test` | <p>Whether to run tests</p> | `false` | `true` |
-| `stack-arguments` | <p>Additional arguments for all top-level <code>stack</code> command invocations.</p> | `false` | `--no-terminal` |
-| `stack-query-arguments` | <p>Additional arguments in <code>stack query</code> invocations.</p> | `false` | `""` |
-| `stack-path-arguments` | <p>Additional arguments in <code>stack path</code> invocations.</p> | `false` | `""` |
-| `stack-setup-arguments` | <p>Additional arguments in <code>stack setup</code> invocations.</p> | `false` | `""` |
-| `stack-build-arguments` | <p>Additional arguments for all <code>stack build</code> invocations.</p> | `false` | `--fast --pedantic` |
-| `stack-build-arguments-dependencies` | <p>Additional arguments passed after <code>stack-build-arguments</code> in <code>stack build</code> invocations on the <em>Dependencies</em> step.</p> | `false` | `""` |
-| `stack-build-arguments-build` | <p>Additional arguments passed after <code>stack-build-arguments</code> in <code>stack build</code> invocations on the <em>Build</em> step.</p> | `false` | `""` |
-| `stack-build-arguments-test` | <p>Additional arguments passed after <code>stack-build-arguments</code> in <code>stack build</code> invocations on the <em>Test</em> step.</p> | `false` | `""` |
-| `cache-prefix` | <p>Prefix applied to all cache keys. This can be any value you like, but teams often use <code>v{N}</code> and bump it to <code>v{N+1}</code> when/if they need to explicitly bust caches.</p> | `false` | `""` |
-| `cache-save-always` | <p>Save artifacts to the cache even if the build fails. This may speed up builds in subsequent runs at the expense of slightly-longer builds when a full cache-hit occurs. Since <code>@v4.2.0</code></p> | `false` | `false` |
+| name                                 | description                                                                                                                                                                                               | required | default             |
+| ------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------- | ------------------- |
+| `working-directory`                  | <p>Working directory for run commands</p>                                                                                                                                                                 | `false`  | `.`                 |
+| `stack-yaml`                         | <p>Override stack.yaml, relative to working-directory</p>                                                                                                                                                 | `false`  | `stack.yaml`        |
+| `test`                               | <p>Whether to run tests</p>                                                                                                                                                                               | `false`  | `true`              |
+| `stack-arguments`                    | <p>Additional arguments for all top-level <code>stack</code> command invocations.</p>                                                                                                                     | `false`  | `--no-terminal`     |
+| `stack-query-arguments`              | <p>Additional arguments in <code>stack query</code> invocations.</p>                                                                                                                                      | `false`  | `""`                |
+| `stack-path-arguments`               | <p>Additional arguments in <code>stack path</code> invocations.</p>                                                                                                                                       | `false`  | `""`                |
+| `stack-setup-arguments`              | <p>Additional arguments in <code>stack setup</code> invocations.</p>                                                                                                                                      | `false`  | `""`                |
+| `stack-build-arguments`              | <p>Additional arguments for all <code>stack build</code> invocations.</p>                                                                                                                                 | `false`  | `--fast --pedantic` |
+| `stack-build-arguments-dependencies` | <p>Additional arguments passed after <code>stack-build-arguments</code> in <code>stack build</code> invocations on the <em>Dependencies</em> step.</p>                                                    | `false`  | `""`                |
+| `stack-build-arguments-build`        | <p>Additional arguments passed after <code>stack-build-arguments</code> in <code>stack build</code> invocations on the <em>Build</em> step.</p>                                                           | `false`  | `""`                |
+| `stack-build-arguments-test`         | <p>Additional arguments passed after <code>stack-build-arguments</code> in <code>stack build</code> invocations on the <em>Test</em> step.</p>                                                            | `false`  | `""`                |
+| `cache-prefix`                       | <p>Prefix applied to all cache keys. This can be any value you like, but teams often use <code>v{N}</code> and bump it to <code>v{N+1}</code> when/if they need to explicitly bust caches.</p>            | `false`  | `""`                |
+| `cache-save-always`                  | <p>Save artifacts to the cache even if the build fails. This may speed up builds in subsequent runs at the expense of slightly-longer builds when a full cache-hit occurs. Since <code>@v4.2.0</code></p> | `false`  | `false`             |
+
 <!-- action-docs-inputs action="action.yml" -->
 
 <!-- action-docs-outputs action="action.yml" -->
+
 ## Outputs
 
-| name | description |
-| --- | --- |
-| `compiler` | <p><code>compiler.actual</code> value from stack query</p> |
-| `compiler-version` | <p>The GHC version part of compiler</p> |
-| `snapshot-doc-root` | <p><code>snapshot-doc-root</code> value from <code>stack path</code></p> |
-| `local-doc-root` | <p><code>local-doc-root</code> value from <code>stack path</code></p> |
-| `local-hoogle-root` | <p><code>local-hoogle-root</code> value from <code>stack path</code></p> |
-| `stack-root` | <p><code>stack-root</code> value from <code>stack path</code></p> |
-| `project-root` | <p><code>project-root</code> value from <code>stack path</code></p> |
-| `config-location` | <p><code>config-location</code> value from <code>stack path</code></p> |
-| `bin-path` | <p><code>bin-path</code> value from <code>stack path</code></p> |
-| `programs` | <p><code>programs</code> value from <code>stack path</code></p> |
-| `compiler-exe` | <p><code>compiler-exe</code> value from <code>stack path</code></p> |
-| `compiler-bin` | <p><code>compiler-bin</code> value from <code>stack path</code></p> |
-| `compiler-tools-bin` | <p><code>compiler-tools-bin</code> value from <code>stack path</code></p> |
-| `local-bin` | <p><code>local-bin</code> value from <code>stack path</code></p> |
-| `extra-include-dirs` | <p><code>extra-include-dirs</code> value from <code>stack path</code></p> |
-| `extra-library-dirs` | <p><code>extra-library-dirs</code> value from <code>stack path</code></p> |
-| `snapshot-pkg-db` | <p><code>snapshot-pkg-db</code> value from <code>stack path</code></p> |
-| `local-pkg-db` | <p><code>local-pkg-db</code> value from <code>stack path</code></p> |
-| `global-pkg-db` | <p><code>global-pkg-db</code> value from <code>stack path</code></p> |
-| `ghc-package-path` | <p><code>ghc-package-path</code> value from <code>stack path</code></p> |
+| name                    | description                                                                  |
+| ----------------------- | ---------------------------------------------------------------------------- |
+| `compiler`              | <p><code>compiler.actual</code> value from stack query</p>                   |
+| `compiler-version`      | <p>The GHC version part of compiler</p>                                      |
+| `snapshot-doc-root`     | <p><code>snapshot-doc-root</code> value from <code>stack path</code></p>     |
+| `local-doc-root`        | <p><code>local-doc-root</code> value from <code>stack path</code></p>        |
+| `local-hoogle-root`     | <p><code>local-hoogle-root</code> value from <code>stack path</code></p>     |
+| `stack-root`            | <p><code>stack-root</code> value from <code>stack path</code></p>            |
+| `project-root`          | <p><code>project-root</code> value from <code>stack path</code></p>          |
+| `config-location`       | <p><code>config-location</code> value from <code>stack path</code></p>       |
+| `bin-path`              | <p><code>bin-path</code> value from <code>stack path</code></p>              |
+| `programs`              | <p><code>programs</code> value from <code>stack path</code></p>              |
+| `compiler-exe`          | <p><code>compiler-exe</code> value from <code>stack path</code></p>          |
+| `compiler-bin`          | <p><code>compiler-bin</code> value from <code>stack path</code></p>          |
+| `compiler-tools-bin`    | <p><code>compiler-tools-bin</code> value from <code>stack path</code></p>    |
+| `local-bin`             | <p><code>local-bin</code> value from <code>stack path</code></p>             |
+| `extra-include-dirs`    | <p><code>extra-include-dirs</code> value from <code>stack path</code></p>    |
+| `extra-library-dirs`    | <p><code>extra-library-dirs</code> value from <code>stack path</code></p>    |
+| `snapshot-pkg-db`       | <p><code>snapshot-pkg-db</code> value from <code>stack path</code></p>       |
+| `local-pkg-db`          | <p><code>local-pkg-db</code> value from <code>stack path</code></p>          |
+| `global-pkg-db`         | <p><code>global-pkg-db</code> value from <code>stack path</code></p>         |
+| `ghc-package-path`      | <p><code>ghc-package-path</code> value from <code>stack path</code></p>      |
 | `snapshot-install-root` | <p><code>snapshot-install-root</code> value from <code>stack path</code></p> |
-| `local-install-root` | <p><code>local-install-root</code> value from <code>stack path</code></p> |
-| `dist-dir` | <p><code>dist-dir</code> value from <code>stack path</code></p> |
-| `local-hpc-root` | <p><code>local-hpc-root</code> value from <code>stack path</code></p> |
+| `local-install-root`    | <p><code>local-install-root</code> value from <code>stack path</code></p>    |
+| `dist-dir`              | <p><code>dist-dir</code> value from <code>stack path</code></p>              |
+| `local-hpc-root`        | <p><code>local-hpc-root</code> value from <code>stack path</code></p>        |
+
 <!-- action-docs-outputs action="action.yml" -->
 
 ## Generating a Build Matrix of `stack.yaml`s
diff --git a/package-lock.json b/package-lock.json
index 0cf8a6a..01f6b62 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,7 @@
         "action-docs": "git+https://github.com/deemp/action-docs.git#0cb0ac2c40736aba24c4fd5097f1074b5a7c7a4b"
       },
       "devDependencies": {
+        "prettier": "^3.2.4",
         "typescript": "^5.3.0"
       }
     },
@@ -1997,6 +1998,21 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/prettier": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.2.4.tgz",
+      "integrity": "sha512-FWu1oLHKCrtpO1ypU6J0SbK2d9Ckwysq6bHj/uaCP26DxrPpppCLQRGVuqAxSTvhF00AcvDRyYrLNW7ocBhFFQ==",
+      "dev": true,
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
     "node_modules/punycode": {
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
diff --git a/package.json b/package.json
index ee77b37..38b87d6 100644
--- a/package.json
+++ b/package.json
@@ -3,9 +3,10 @@
     "action-docs": "git+https://github.com/deemp/action-docs.git#0cb0ac2c40736aba24c4fd5097f1074b5a7c7a4b"
   },
   "devDependencies": {
-    "typescript": "^5.3.0"
+    "typescript": "^5.3.0",
+    "prettier": "^3.2.4"
   },
   "scripts": {
-    "readme": "npx action-docs -u"
+    "readme": "npx action-docs -u && prettier --write README.md"
   }
 }