diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index fe4e1fbe9..cb221c52b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -2510,8 +2510,8 @@ importers:
         specifier: ^3.2.4
         version: 3.2.4(svelte@3.59.2)
       svelte-preprocess:
-        specifier: ^5.1.4
-        version: 5.1.4(@babel/core@7.28.0)(less@4.3.0)(postcss-load-config@6.0.1(jiti@2.4.2)(postcss@8.5.6)(tsx@4.19.2)(yaml@2.8.0))(postcss@8.5.6)(pug@3.0.2)(sass@1.89.2)(svelte@3.59.2)(typescript@5.8.3)
+        specifier: ^6.0.3
+        version: 6.0.3(@babel/core@7.28.0)(less@4.3.0)(postcss-load-config@6.0.1(jiti@2.4.2)(postcss@8.5.6)(tsx@4.19.2)(yaml@2.8.0))(postcss@8.5.6)(pug@3.0.2)(sass@1.89.2)(svelte@3.59.2)(typescript@5.8.3)
       tslib:
         specifier: ^2.8.1
         version: 2.8.1
@@ -20974,7 +20974,7 @@ snapshots:
 
   babel-walk@3.0.0-canary-5:
     dependencies:
-      '@babel/types': 7.27.7
+      '@babel/types': 7.28.0
     optional: true
 
   bail@2.0.2: {}
@@ -21515,8 +21515,8 @@ snapshots:
 
   constantinople@4.0.1:
     dependencies:
-      '@babel/parser': 7.27.7
-      '@babel/types': 7.27.7
+      '@babel/parser': 7.28.0
+      '@babel/types': 7.28.0
     optional: true
 
   constants-browserify@1.0.0: {}
@@ -27840,6 +27840,18 @@ snapshots:
       stylus: 0.64.0
       typescript: 5.8.3
 
+  svelte-preprocess@6.0.3(@babel/core@7.28.0)(less@4.3.0)(postcss-load-config@6.0.1(jiti@2.4.2)(postcss@8.5.6)(tsx@4.19.2)(yaml@2.8.0))(postcss@8.5.6)(pug@3.0.2)(sass@1.89.2)(svelte@3.59.2)(typescript@5.8.3):
+    dependencies:
+      svelte: 3.59.2
+    optionalDependencies:
+      '@babel/core': 7.28.0
+      less: 4.3.0
+      postcss: 8.5.6
+      postcss-load-config: 6.0.1(jiti@2.4.2)(postcss@8.5.6)(tsx@4.19.2)(yaml@2.8.0)
+      pug: 3.0.2
+      sass: 1.89.2
+      typescript: 5.8.3
+
   svelte@3.59.2: {}
 
   svelte@4.2.20:
@@ -29406,8 +29418,8 @@ snapshots:
 
   with@7.0.2:
     dependencies:
-      '@babel/parser': 7.27.7
-      '@babel/types': 7.27.7
+      '@babel/parser': 7.28.0
+      '@babel/types': 7.28.0
       assert-never: 1.4.0
       babel-walk: 3.0.0-canary-5
     optional: true
diff --git a/rspack/svelte/package.json b/rspack/svelte/package.json
index ee98dc312..e4ccc3f69 100644
--- a/rspack/svelte/package.json
+++ b/rspack/svelte/package.json
@@ -19,7 +19,7 @@
     "svelte": "^3.59.2",
     "svelte-check": "^3.8.6",
     "svelte-loader": "^3.2.4",
-    "svelte-preprocess": "^5.1.4",
+    "svelte-preprocess": "^6.0.3",
     "tslib": "^2.8.1",
     "typescript": "^5.8.3",
     "webpack-bundle-analyzer": "4.10.2"