diff --git a/libs/@guardian/design-tokens/src/tokens.json b/libs/@guardian/design-tokens/src/tokens.json
index 704d2bdb0..e636d7a3f 100644
--- a/libs/@guardian/design-tokens/src/tokens.json
+++ b/libs/@guardian/design-tokens/src/tokens.json
@@ -1537,7 +1537,7 @@
 					"fontSize": "{typography.fontSize.14}",
 					"lineHeight": "{typography.lineHeight.regular}",
 					"fontWeight": "{typography.fontWeight.regular}",
-					"fontStyle": "Italic"
+					"fontStyle": "italic"
 				}
 			},
 			"textSansItalic15": {
diff --git a/libs/@guardian/design-tokens/tokens.d.ts b/libs/@guardian/design-tokens/tokens.d.ts
index 6cc89de9d..2cf19f477 100644
--- a/libs/@guardian/design-tokens/tokens.d.ts
+++ b/libs/@guardian/design-tokens/tokens.d.ts
@@ -1444,7 +1444,7 @@ export declare const tokens: {
 				readonly fontSize: '14px';
 				readonly lineHeight: 1.3;
 				readonly fontWeight: 400;
-				readonly fontStyle: 'Italic';
+				readonly fontStyle: 'italic';
 			};
 			readonly textSansItalic15: {
 				readonly fontFamily: readonly [
diff --git a/libs/@guardian/design-tokens/tokens.js b/libs/@guardian/design-tokens/tokens.js
index 91ae76d49..24b562efe 100644
--- a/libs/@guardian/design-tokens/tokens.js
+++ b/libs/@guardian/design-tokens/tokens.js
@@ -1440,7 +1440,7 @@ export const tokens = {
 				fontSize: '14px',
 				lineHeight: 1.3,
 				fontWeight: 400,
-				fontStyle: 'Italic',
+				fontStyle: 'italic',
 			},
 			textSansItalic15: {
 				fontFamily: [
diff --git a/libs/@guardian/design-tokens/variables.css b/libs/@guardian/design-tokens/variables.css
index 57492a7c1..ac42bf5e7 100644
--- a/libs/@guardian/design-tokens/variables.css
+++ b/libs/@guardian/design-tokens/variables.css
@@ -1410,7 +1410,7 @@
 	--source-typography-presets-textSansItalic14-font-size: var(
 		--source-typography-fontSize-14
 	);
-	--source-typography-presets-textSansItalic14-font-style: Italic;
+	--source-typography-presets-textSansItalic14-font-style: italic;
 	--source-typography-presets-textSansItalic14-font-weight: var(
 		--source-typography-fontWeight-regular
 	);