diff --git a/.changeset/sour-turtles-tap.md b/.changeset/sour-turtles-tap.md
new file mode 100644
index 0000000000000..2ec36ecbfd1e1
--- /dev/null
+++ b/.changeset/sour-turtles-tap.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/svelte': patch
+---
+
+Update to svelte2tsx 0.6.15 and vite-plugin-svelte 2.4.1
diff --git a/packages/integrations/svelte/package.json b/packages/integrations/svelte/package.json
index fc9d5aa40354f..a915282778527 100644
--- a/packages/integrations/svelte/package.json
+++ b/packages/integrations/svelte/package.json
@@ -38,18 +38,18 @@
     "dev": "astro-scripts dev \"src/**/*.ts\""
   },
   "dependencies": {
-    "@sveltejs/vite-plugin-svelte": "^2.1.1",
-    "svelte2tsx": "^0.5.11"
+    "@sveltejs/vite-plugin-svelte": "^2.4.1",
+    "svelte2tsx": "^0.6.15"
   },
   "devDependencies": {
     "astro": "workspace:*",
     "astro-scripts": "workspace:*",
-    "svelte": "^3.54.0",
+    "svelte": "^3.55.0",
     "vite": "^4.3.1"
   },
   "peerDependencies": {
     "astro": "workspace:^2.6.0",
-    "svelte": "^3.54.0"
+    "svelte": "^3.55.0"
   },
   "engines": {
     "node": ">=16.12.0"
diff --git a/packages/integrations/svelte/src/editor.cts b/packages/integrations/svelte/src/editor.cts
index c14f082b15056..2d426cf1bbd32 100644
--- a/packages/integrations/svelte/src/editor.cts
+++ b/packages/integrations/svelte/src/editor.cts
@@ -10,7 +10,7 @@ export function toTSX(code: string, className: string): string {
 		let tsx = svelte2tsx(code, { mode: 'ts' }).code;
 		tsx = '/// <reference types="svelte2tsx/svelte-shims" />\n' + tsx;
 		result = tsx.replace(
-			'export default class extends __sveltets_1_createSvelte2TsxComponent(',
+			'export default class extends __sveltets_2_createSvelte2TsxComponent(',
 			`export default function ${className}__AstroComponent_(_props: typeof Component.props): any {}\nlet Component = `
 		);
 	} catch (e: any) {