diff --git a/libs/@guardian/source-foundations/package.json b/libs/@guardian/source-foundations/package.json
index 01f4ebbb7..c61319f87 100644
--- a/libs/@guardian/source-foundations/package.json
+++ b/libs/@guardian/source-foundations/package.json
@@ -32,6 +32,7 @@
 		"@emotion/react": "11.11.1",
 		"@guardian/design-tokens": "workspace:*",
 		"lightningcss": "1.24.0",
+		"prettier": "3.2.5",
 		"react": "18.2.0",
 		"react-dom": "18.2.0",
 		"rollup": "4.17.2",
diff --git a/libs/@guardian/source-foundations/scripts/build-type-presets.ts b/libs/@guardian/source-foundations/scripts/build-type-presets.ts
index 09ede8655..e0c1f507b 100644
--- a/libs/@guardian/source-foundations/scripts/build-type-presets.ts
+++ b/libs/@guardian/source-foundations/scripts/build-type-presets.ts
@@ -1,5 +1,7 @@
 import fs from 'node:fs';
 import { typography, typographyPresets } from '@guardian/design-tokens';
+import prettierConfig from '@guardian/prettier';
+import { format } from 'prettier';
 import { fontArrayToString, pxStringToRem } from '../src/utils/convert-value';
 
 const STRIP_WHITESPACE = /^\s+/gm;
@@ -61,6 +63,17 @@ const object = Object.entries(typographyPresets)
 	.join('')
 	.replace(STRIP_TABS, '');
 
-fs.writeFileSync(cssOutputPath, banner + css);
-fs.writeFileSync(objectOutputPath, banner + object);
-console.log(`✓ ${presetTotal} presets built`);
+void (async () => {
+	fs.writeFileSync(
+		cssOutputPath,
+		await format(banner + css, { filepath: cssOutputPath, ...prettierConfig }),
+	);
+	fs.writeFileSync(
+		objectOutputPath,
+		await format(banner + object, {
+			filepath: objectOutputPath,
+			...prettierConfig,
+		}),
+	);
+	console.log(`✓ ${presetTotal} presets built`);
+})();
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e539e89e9..750e125ab 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -702,6 +702,9 @@ importers:
       lightningcss:
         specifier: 1.24.0
         version: 1.24.0
+      prettier:
+        specifier: 3.2.5
+        version: 3.2.5
       react:
         specifier: 18.2.0
         version: 18.2.0
@@ -4548,7 +4551,7 @@ packages:
       jscodeshift: 0.15.2(@babel/preset-env@7.24.0)
       leven: 3.1.0
       ora: 5.4.1
-      prettier: 3.2.2
+      prettier: 3.2.5
       prompts: 2.4.2
       read-pkg-up: 7.0.1
       semver: 7.5.4
@@ -4587,7 +4590,7 @@ packages:
       globby: 11.1.0
       jscodeshift: 0.15.2(@babel/preset-env@7.24.0)
       lodash: 4.17.21
-      prettier: 3.2.2
+      prettier: 3.2.5
       recast: 0.23.6
       tiny-invariant: 1.3.3
     transitivePeerDependencies:
@@ -13229,6 +13232,12 @@ packages:
     hasBin: true
     dev: true
 
+  /prettier@3.2.5:
+    resolution: {integrity: sha512-3/GWa9aOC0YeD7LUfvOG2NiDyhOWRvt1k+rcKhOuYnMY24iiCphgneUfJDyFXd6rZCAnuLBv6UeAULtrhT/F4A==}
+    engines: {node: '>=14'}
+    hasBin: true
+    dev: true
+
   /pretty-bytes@5.6.0:
     resolution: {integrity: sha512-FFw039TmrBqFK8ma/7OL3sDz/VytdtJr044/QUJtH0wK9lb9jLq9tJyIxUwtQJHwar2BqtiA4iCWSwo9JLkzFg==}
     engines: {node: '>=6'}