diff --git a/.changeset/gold-cougars-report.md b/.changeset/gold-cougars-report.md
new file mode 100644
index 000000000..469887172
--- /dev/null
+++ b/.changeset/gold-cougars-report.md
@@ -0,0 +1,5 @@
+---
+'sv': patch
+---
+
+chore: update `vite@6` and related packages
diff --git a/packages/addons/vitest-addon/index.ts b/packages/addons/vitest-addon/index.ts
index 6ef6aa2d6..4eea7f8d5 100644
--- a/packages/addons/vitest-addon/index.ts
+++ b/packages/addons/vitest-addon/index.ts
@@ -10,7 +10,7 @@ export default defineAddon({
 	run: ({ sv, typescript }) => {
 		const ext = typescript ? 'ts' : 'js';
 
-		sv.devDependency('vitest', '^2.1.8');
+		sv.devDependency('vitest', '^3.0.0');
 
 		sv.file('package.json', (content) => {
 			const { data, generateCode } = parseJson(content);
diff --git a/packages/create/templates/demo/package.json b/packages/create/templates/demo/package.json
index 64baec803..030d67dcc 100644
--- a/packages/create/templates/demo/package.json
+++ b/packages/create/templates/demo/package.json
@@ -11,11 +11,11 @@
 	"devDependencies": {
 		"@fontsource/fira-mono": "^5.0.0",
 		"@neoconfetti/svelte": "^2.0.0",
-		"@sveltejs/adapter-auto": "^3",
-		"@sveltejs/kit": "^2",
-		"@sveltejs/vite-plugin-svelte": "^4.0.0",
+		"@sveltejs/adapter-auto": "^4.0.0",
+		"@sveltejs/kit": "^2.9.0",
+		"@sveltejs/vite-plugin-svelte": "^5.0.0",
 		"svelte": "^5.0.0",
 		"typescript": "^5.3.3",
-		"vite": "^5.4.11"
+		"vite": "^6.0.0"
 	}
 }
diff --git a/packages/create/templates/demo/package.template.json b/packages/create/templates/demo/package.template.json
index 55b6c68bf..a50993612 100644
--- a/packages/create/templates/demo/package.template.json
+++ b/packages/create/templates/demo/package.template.json
@@ -12,9 +12,9 @@
 		"@fontsource/fira-mono": "^5.0.0",
 		"@neoconfetti/svelte": "^2.0.0",
 		"@sveltejs/adapter-auto": "^4.0.0",
-		"@sveltejs/kit": "^2.0.0",
-		"@sveltejs/vite-plugin-svelte": "^4.0.0",
+		"@sveltejs/kit": "^2.16.0",
+		"@sveltejs/vite-plugin-svelte": "^5.0.0",
 		"svelte": "^5.0.0",
-		"vite": "^5.4.11"
+		"vite": "^6.0.0"
 	}
 }
diff --git a/packages/create/templates/library/package.template.json b/packages/create/templates/library/package.template.json
index 7e4446404..aae3603ad 100644
--- a/packages/create/templates/library/package.template.json
+++ b/packages/create/templates/library/package.template.json
@@ -23,12 +23,12 @@
 	},
 	"devDependencies": {
 		"@sveltejs/adapter-auto": "^4.0.0",
-		"@sveltejs/kit": "^2.0.0",
+		"@sveltejs/kit": "^2.16.0",
 		"@sveltejs/package": "^2.0.0",
-		"@sveltejs/vite-plugin-svelte": "^4.0.0",
+		"@sveltejs/vite-plugin-svelte": "^5.0.0",
 		"publint": "^0.3.2",
 		"svelte": "^5.0.0",
 		"typescript": "^5.3.2",
-		"vite": "^5.4.11"
+		"vite": "^6.0.0"
 	}
 }
diff --git a/packages/create/templates/minimal/package.template.json b/packages/create/templates/minimal/package.template.json
index bb5bc349c..c72e62233 100644
--- a/packages/create/templates/minimal/package.template.json
+++ b/packages/create/templates/minimal/package.template.json
@@ -10,9 +10,9 @@
 	},
 	"devDependencies": {
 		"@sveltejs/adapter-auto": "^4.0.0",
-		"@sveltejs/kit": "^2.0.0",
-		"@sveltejs/vite-plugin-svelte": "^4.0.0",
+		"@sveltejs/kit": "^2.16.0",
+		"@sveltejs/vite-plugin-svelte": "^5.0.0",
 		"svelte": "^5.0.0",
-		"vite": "^5.4.11"
+		"vite": "^6.0.0"
 	}
 }