diff --git a/apps/playground/rsvelte-shim/compiler.mjs b/apps/playground/rsvelte-shim/compiler.mjs
index 52d33b1b28..6553c8f6b5 100644
--- a/apps/playground/rsvelte-shim/compiler.mjs
+++ b/apps/playground/rsvelte-shim/compiler.mjs
@@ -80,8 +80,8 @@ function logOnce() {
 
 // The upstream svelte version we mirror. vite-plugin-svelte does
 // `gte(VERSION, '5.36.0')` to decide whether async features are available.
-// rsvelte targets sveltejs/svelte@5.56.10, so report that.
-export const VERSION = '5.56.10';
+// rsvelte targets sveltejs/svelte@5.57.0, so report that.
+export const VERSION = '5.57.0';
 
 // The NAPI compile binding deserialises `options` via serde_json, which can't
 // represent JS functions. vite-plugin-svelte sets `options.cssHash = () => …`
diff --git a/apps/playground/src/lib/preview.ts b/apps/playground/src/lib/preview.ts
index 369f3cf333..c3c9790fc0 100644
--- a/apps/playground/src/lib/preview.ts
+++ b/apps/playground/src/lib/preview.ts
@@ -7,9 +7,9 @@
 
 const IMPORT_MAP = {
   imports: {
-    svelte: "https://esm.sh/svelte@5.56.10",
-    "svelte/internal/disclose-version": "https://esm.sh/svelte@5.56.10/internal/disclose-version",
-    "svelte/internal/client": "https://esm.sh/svelte@5.56.10/internal/client",
+    svelte: "https://esm.sh/svelte@5.57.0",
+    "svelte/internal/disclose-version": "https://esm.sh/svelte@5.57.0/internal/disclose-version",
+    "svelte/internal/client": "https://esm.sh/svelte@5.57.0/internal/client",
   },
 };
 
diff --git a/crates/rsvelte_core/svelte-version.txt b/crates/rsvelte_core/svelte-version.txt
index 83ca9d9079..393db17065 100644
--- a/crates/rsvelte_core/svelte-version.txt
+++ b/crates/rsvelte_core/svelte-version.txt
@@ -1 +1 @@
-5.56.10
+5.57.0
diff --git a/submodules/svelte b/submodules/svelte
index 56a036f4ce..7bc0a70fe6 160000
--- a/submodules/svelte
+++ b/submodules/svelte
@@ -1 +1 @@
-Subproject commit 56a036f4ce873a24ee6631a06d03d372523d7a9b
+Subproject commit 7bc0a70fe64dbb3fa3848b741963f31d1e10a8dc