diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index ea99345..d0a3ac7 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -59,7 +59,7 @@ jobs:
       - name: Setup pnpm
         uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
         with:
-          version: 11.6.0
+          version: 11.9.0
 
       - name: Setup Node.js
         uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 65a3b2d..7a37b72 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -28,7 +28,7 @@ jobs:
       - name: Setup pnpm
         uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
         with:
-          version: 11.6.0
+          version: 11.9.0
 
       - name: Setup Node.js
         uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
diff --git a/.github/workflows/weekly-benchmarks.yml b/.github/workflows/weekly-benchmarks.yml
index df483cf..e08a586 100644
--- a/.github/workflows/weekly-benchmarks.yml
+++ b/.github/workflows/weekly-benchmarks.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Setup pnpm
         uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
         with:
-          version: 11.6.0
+          version: 11.9.0
 
       - name: Setup Node.js
         uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
diff --git a/.github/workflows/weekly-gen.yml b/.github/workflows/weekly-gen.yml
index 295ecf3..14779b4 100644
--- a/.github/workflows/weekly-gen.yml
+++ b/.github/workflows/weekly-gen.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Setup pnpm
         uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
         with:
-          version: 11.6.0
+          version: 11.9.0
 
       - name: Setup Node.js
         uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
diff --git a/demo/package.json b/demo/package.json
index 71e7135..64568f5 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "scripts": {
-    "clean": "rimraf dist",
+    "clean": "rimraf .output .nuxt",
     "clean:modules": "rimraf node_modules",
     "deps:prepare": "nuxt prepare",
     "build": "nuxt build",
diff --git a/package.json b/package.json
index b6c8ef0..8886e8c 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "type": "module",
   "scripts": {
     "build": "pnpm -w -r --filter \"./packages/**\" --stream run build",
-    "clean": "pnpm -w -r --filter \"./packages/**\" --stream run clean",
+    "clean": "pnpm -w -r --filter \"*\" --stream run clean",
     "clean:modules": "pnpm -w -r --filter \"*\" --stream run clean:modules && rimraf node_modules",
     "dev:demo": "pnpm --filter demo dev",
     "dev:prepare": "pnpm --filter demo deps:prepare",
@@ -25,7 +25,7 @@
     "test:unit:coverage": "pnpm -w -r --filter \"./packages/**\" --stream run test:unit:coverage",
     "prepare": "husky"
   },
-  "packageManager": "pnpm@11.6.0",
+  "packageManager": "pnpm@11.9.0",
   "engines": {
     "node": ">=22.18.0"
   },
diff --git a/scripts/stable-package-stats.mts b/scripts/stable-package-stats.mts
index 3975b1c..18e401b 100644
--- a/scripts/stable-package-stats.mts
+++ b/scripts/stable-package-stats.mts
@@ -90,7 +90,8 @@ const DEFAULT_INSTALL_TIMEOUT_MS = 120_000;
 const SVELTE_BUILD_TIMEOUT_MS = 180_000;
 const SVELTE_FALLBACK_VITE_VERSION = '^8.0.0';
 const SVELTE_FALLBACK_PLUGIN_VERSION = '^7.0.0';
-const SVELTE_FALLBACK_SVELTE_VERSION = '^5.0.0';
+// Svelte 5.56.3 leaves TypeScript syntax untransformed in some node_modules .svelte files under this temp build.
+const SVELTE_FALLBACK_SVELTE_VERSION = '^5.56.4';
 const BUILTIN_EXTERNALS = new Set<string>([...builtinModules, ...builtinModules.map((mod) => `node:${mod}`)]);
 const CSS_LOADER_PATH = createRequire(import.meta.url).resolve('css-loader');
 const ESCAPE_REGEX = /[.*+?^${}()|[\]\\]/g;