diff --git a/package-lock.json b/package-lock.json
index dbbfc963fc4522e..6deaad446caf00f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
 				"@astrojs/sitemap": "3.3.0",
 				"@astrojs/starlight": "0.32.5",
 				"@astrojs/starlight-docsearch": "0.6.0",
-				"@astrojs/starlight-tailwind": "3.0.1",
+				"@astrojs/starlight-tailwind": "4.0.1",
 				"@astrojs/tailwind": "5.1.5",
 				"@cloudflare/vitest-pool-workers": "0.8.20",
 				"@cloudflare/workers-types": "4.20250421.0",
@@ -1009,15 +1009,14 @@
 			}
 		},
 		"node_modules/@astrojs/starlight-tailwind": {
-			"version": "3.0.1",
-			"resolved": "https://registry.npmjs.org/@astrojs/starlight-tailwind/-/starlight-tailwind-3.0.1.tgz",
-			"integrity": "sha512-9gPBaglNYuD3gLSF+4RvmbO3DxMMMby/AYFuwZkS+BLo67WQWyBIdYtmof814Gi750qSnt0sCvhqFAURqbA1Cw==",
+			"version": "4.0.1",
+			"resolved": "https://registry.npmjs.org/@astrojs/starlight-tailwind/-/starlight-tailwind-4.0.1.tgz",
+			"integrity": "sha512-AOOEWTGqJ7fG66U04xTmZQZ40oZnUYe4Qljpr+No88ozKywtsD1DiXOrGTeHCnZu0hRtMbRtBGB1fZsf0L62iw==",
 			"dev": true,
 			"license": "MIT",
 			"peerDependencies": {
-				"@astrojs/starlight": ">=0.30.0",
-				"@astrojs/tailwind": "^5.1.3 || ^6.0.0",
-				"tailwindcss": "^3.3.3"
+				"@astrojs/starlight": ">=0.34.0",
+				"tailwindcss": "^4.0.0"
 			}
 		},
 		"node_modules/@astrojs/tailwind": {
diff --git a/package.json b/package.json
index 34523a07efa9835..b827599f4971063 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
 		"@astrojs/sitemap": "3.3.0",
 		"@astrojs/starlight": "0.32.5",
 		"@astrojs/starlight-docsearch": "0.6.0",
-		"@astrojs/starlight-tailwind": "3.0.1",
+		"@astrojs/starlight-tailwind": "4.0.1",
 		"@astrojs/tailwind": "5.1.5",
 		"@cloudflare/vitest-pool-workers": "0.8.20",
 		"@cloudflare/workers-types": "4.20250421.0",