diff --git a/e2e/cases/plugin-svelte/package.json b/e2e/cases/plugin-svelte/package.json
index 9e191501eb..8106872f88 100644
--- a/e2e/cases/plugin-svelte/package.json
+++ b/e2e/cases/plugin-svelte/package.json
@@ -3,7 +3,7 @@
   "name": "@e2e/svelte",
   "version": "1.0.0",
   "dependencies": {
-    "svelte": "^5.41.1"
+    "svelte": "^5.42.2"
   },
   "devDependencies": {
     "less": "4.3.0",
diff --git a/examples/svelte/package.json b/examples/svelte/package.json
index 775312b7e7..a76c8edb96 100644
--- a/examples/svelte/package.json
+++ b/examples/svelte/package.json
@@ -8,7 +8,7 @@
     "preview": "rsbuild preview"
   },
   "dependencies": {
-    "svelte": "^5.41.1"
+    "svelte": "^5.42.2"
   },
   "devDependencies": {
     "@rsbuild/core": "workspace:*",
diff --git a/packages/create-rsbuild/template-svelte-js/package.json b/packages/create-rsbuild/template-svelte-js/package.json
index edbbdfab4e..6bdcc27c9c 100644
--- a/packages/create-rsbuild/template-svelte-js/package.json
+++ b/packages/create-rsbuild/template-svelte-js/package.json
@@ -9,7 +9,7 @@
     "preview": "rsbuild preview"
   },
   "dependencies": {
-    "svelte": "^5.41.1"
+    "svelte": "^5.42.2"
   },
   "devDependencies": {
     "@rsbuild/core": "^1.5.17",
diff --git a/packages/create-rsbuild/template-svelte-ts/package.json b/packages/create-rsbuild/template-svelte-ts/package.json
index ddb3d07816..43fe4d14bf 100644
--- a/packages/create-rsbuild/template-svelte-ts/package.json
+++ b/packages/create-rsbuild/template-svelte-ts/package.json
@@ -10,7 +10,7 @@
     "svelte-check": "svelte-check --tsconfig ./tsconfig.json"
   },
   "dependencies": {
-    "svelte": "^5.41.1"
+    "svelte": "^5.42.2"
   },
   "devDependencies": {
     "@rsbuild/core": "^1.5.17",
diff --git a/packages/plugin-svelte/package.json b/packages/plugin-svelte/package.json
index b948931bdb..9c0f5b044e 100644
--- a/packages/plugin-svelte/package.json
+++ b/packages/plugin-svelte/package.json
@@ -35,7 +35,7 @@
     "@rslib/core": "0.16.1",
     "@scripts/test-helper": "workspace:*",
     "@types/node": "^22.18.12",
-    "svelte": "^5.41.1",
+    "svelte": "^5.42.2",
     "typescript": "^5.9.3"
   },
   "peerDependencies": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c89af50956..9b144fa91c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -251,8 +251,8 @@ importers:
   e2e/cases/plugin-svelte:
     dependencies:
       svelte:
-        specifier: ^5.41.1
-        version: 5.41.2
+        specifier: ^5.42.2
+        version: 5.42.2
     devDependencies:
       less:
         specifier: 4.3.0
@@ -465,8 +465,8 @@ importers:
   examples/svelte:
     dependencies:
       svelte:
-        specifier: ^5.41.1
-        version: 5.41.2
+        specifier: ^5.42.2
+        version: 5.42.2
     devDependencies:
       '@rsbuild/core':
         specifier: workspace:*
@@ -1043,10 +1043,10 @@ importers:
     dependencies:
       svelte-loader:
         specifier: 3.2.4
-        version: 3.2.4(svelte@5.41.2)
+        version: 3.2.4(svelte@5.42.2)
       svelte-preprocess:
         specifier: ^6.0.3
-        version: 6.0.3(@babel/core@7.28.4)(less@4.3.0)(postcss-load-config@6.0.1(jiti@2.6.1)(postcss@8.5.6)(yaml@2.8.1))(postcss@8.5.6)(sass@1.93.2)(stylus@0.64.0)(svelte@5.41.2)(typescript@5.9.3)
+        version: 6.0.3(@babel/core@7.28.4)(less@4.3.0)(postcss-load-config@6.0.1(jiti@2.6.1)(postcss@8.5.6)(yaml@2.8.1))(postcss@8.5.6)(sass@1.93.2)(stylus@0.64.0)(svelte@5.42.2)(typescript@5.9.3)
     devDependencies:
       '@rsbuild/core':
         specifier: workspace:*
@@ -1061,8 +1061,8 @@ importers:
         specifier: ^22.18.12
         version: 22.18.12
       svelte:
-        specifier: ^5.41.1
-        version: 5.41.2
+        specifier: ^5.42.2
+        version: 5.42.2
       typescript:
         specifier: ^5.9.3
         version: 5.9.3
@@ -6408,8 +6408,8 @@ packages:
       typescript:
         optional: true
 
-  svelte@5.41.2:
-    resolution: {integrity: sha512-JetVllvRzfAqg/32ST3SWkb0+OiCpJ/sSMTe206QgiTAN6XaCR3s7nx2L+hQHoUd/1YoK+UsEblGWyKcqY7Efg==}
+  svelte@5.42.2:
+    resolution: {integrity: sha512-iSry5jsBHispVczyt9UrBX/1qu3HQ/UyKPAIjqlvlu3o/eUvc+kpyMyRS2O4HLLx4MvLurLGIUOyyP11pyD59g==}
     engines: {node: '>=18'}
 
   svg-parser@2.0.4:
@@ -12543,20 +12543,20 @@ snapshots:
 
   svelte-dev-helper@1.1.9: {}
 
-  svelte-hmr@0.14.12(svelte@5.41.2):
+  svelte-hmr@0.14.12(svelte@5.42.2):
     dependencies:
-      svelte: 5.41.2
+      svelte: 5.42.2
 
-  svelte-loader@3.2.4(svelte@5.41.2):
+  svelte-loader@3.2.4(svelte@5.42.2):
     dependencies:
       loader-utils: 2.0.4
-      svelte: 5.41.2
+      svelte: 5.42.2
       svelte-dev-helper: 1.1.9
-      svelte-hmr: 0.14.12(svelte@5.41.2)
+      svelte-hmr: 0.14.12(svelte@5.42.2)
 
-  svelte-preprocess@6.0.3(@babel/core@7.28.4)(less@4.3.0)(postcss-load-config@6.0.1(jiti@2.6.1)(postcss@8.5.6)(yaml@2.8.1))(postcss@8.5.6)(sass@1.93.2)(stylus@0.64.0)(svelte@5.41.2)(typescript@5.9.3):
+  svelte-preprocess@6.0.3(@babel/core@7.28.4)(less@4.3.0)(postcss-load-config@6.0.1(jiti@2.6.1)(postcss@8.5.6)(yaml@2.8.1))(postcss@8.5.6)(sass@1.93.2)(stylus@0.64.0)(svelte@5.42.2)(typescript@5.9.3):
     dependencies:
-      svelte: 5.41.2
+      svelte: 5.42.2
     optionalDependencies:
       '@babel/core': 7.28.4
       less: 4.3.0
@@ -12566,7 +12566,7 @@ snapshots:
       stylus: 0.64.0
       typescript: 5.9.3
 
-  svelte@5.41.2:
+  svelte@5.42.2:
     dependencies:
       '@jridgewell/remapping': 2.3.5
       '@jridgewell/sourcemap-codec': 1.5.5