diff --git a/e2e/cases/svelte/package.json b/e2e/cases/svelte/package.json
index 193aa06569..a7eb1758f7 100644
--- a/e2e/cases/svelte/package.json
+++ b/e2e/cases/svelte/package.json
@@ -3,7 +3,7 @@
   "name": "@e2e/svelte",
   "version": "1.0.0",
   "dependencies": {
-    "svelte": "^5.16.2"
+    "svelte": "^5.17.3"
   },
   "devDependencies": {
     "less": "^4.2.1",
diff --git a/examples/svelte/package.json b/examples/svelte/package.json
index 34e5bc0110..ab3c6d7cc5 100644
--- a/examples/svelte/package.json
+++ b/examples/svelte/package.json
@@ -7,7 +7,7 @@
     "preview": "rsbuild preview"
   },
   "dependencies": {
-    "svelte": "^5.16.2"
+    "svelte": "^5.17.3"
   },
   "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 cbce17f247..f8e7a6ee33 100644
--- a/packages/create-rsbuild/template-svelte-js/package.json
+++ b/packages/create-rsbuild/template-svelte-js/package.json
@@ -8,7 +8,7 @@
     "preview": "rsbuild preview"
   },
   "dependencies": {
-    "svelte": "^5.16.2"
+    "svelte": "^5.17.3"
   },
   "devDependencies": {
     "@rsbuild/core": "^1.1.13",
diff --git a/packages/create-rsbuild/template-svelte-ts/package.json b/packages/create-rsbuild/template-svelte-ts/package.json
index 00a95792f4..9ed407fc65 100644
--- a/packages/create-rsbuild/template-svelte-ts/package.json
+++ b/packages/create-rsbuild/template-svelte-ts/package.json
@@ -9,7 +9,7 @@
     "svelte-check": "svelte-check --tsconfig ./tsconfig.json"
   },
   "dependencies": {
-    "svelte": "^5.16.2"
+    "svelte": "^5.17.3"
   },
   "devDependencies": {
     "@rsbuild/core": "^1.1.13",
diff --git a/packages/plugin-svelte/package.json b/packages/plugin-svelte/package.json
index f843de1ad1..45208a7d13 100644
--- a/packages/plugin-svelte/package.json
+++ b/packages/plugin-svelte/package.json
@@ -34,7 +34,7 @@
     "@rslib/core": "0.3.0",
     "@scripts/test-helper": "workspace:*",
     "@types/node": "^22.10.5",
-    "svelte": "^5.16.2",
+    "svelte": "^5.17.3",
     "typescript": "^5.7.2"
   },
   "peerDependencies": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d8fc8274e3..14426831d7 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -249,8 +249,8 @@ importers:
   e2e/cases/svelte:
     dependencies:
       svelte:
-        specifier: ^5.16.2
-        version: 5.16.2
+        specifier: ^5.17.3
+        version: 5.17.3
     devDependencies:
       less:
         specifier: ^4.2.1
@@ -436,8 +436,8 @@ importers:
   examples/svelte:
     dependencies:
       svelte:
-        specifier: ^5.16.2
-        version: 5.16.2
+        specifier: ^5.17.3
+        version: 5.17.3
     devDependencies:
       '@rsbuild/core':
         specifier: workspace:*
@@ -1009,10 +1009,10 @@ importers:
     dependencies:
       svelte-loader:
         specifier: 3.2.4
-        version: 3.2.4(svelte@5.16.2)
+        version: 3.2.4(svelte@5.17.3)
       svelte-preprocess:
         specifier: ^6.0.3
-        version: 6.0.3(@babel/core@7.26.0)(less@4.2.1)(postcss-load-config@6.0.1(jiti@1.21.7)(postcss@8.4.49)(yaml@2.6.0))(postcss@8.4.49)(sass@1.83.1)(stylus@0.64.0)(svelte@5.16.2)(typescript@5.7.2)
+        version: 6.0.3(@babel/core@7.26.0)(less@4.2.1)(postcss-load-config@6.0.1(jiti@1.21.7)(postcss@8.4.49)(yaml@2.6.0))(postcss@8.4.49)(sass@1.83.1)(stylus@0.64.0)(svelte@5.17.3)(typescript@5.7.2)
     devDependencies:
       '@rsbuild/core':
         specifier: workspace:*
@@ -1027,8 +1027,8 @@ importers:
         specifier: ^22.10.5
         version: 22.10.5
       svelte:
-        specifier: ^5.16.2
-        version: 5.16.2
+        specifier: ^5.17.3
+        version: 5.17.3
       typescript:
         specifier: ^5.7.2
         version: 5.7.2
@@ -6379,8 +6379,8 @@ packages:
       typescript:
         optional: true
 
-  svelte@5.16.2:
-    resolution: {integrity: sha512-S4mKWbjv53ik1NtGuO95TC7kBA8GYBIeT9fM6y2wHdLNqdCmPXJSWLVuO7vlJZ7TUksp+6qnvqCCtWnVXeTCyw==}
+  svelte@5.17.3:
+    resolution: {integrity: sha512-eLgtpR2JiTgeuNQRCDcLx35Z7Lu9Qe09GPOz+gvtR9nmIZu5xgFd6oFiLGQlxLD0/u7xVyF5AUkjDVyFHe6Bvw==}
     engines: {node: '>=18'}
 
   svg-parser@2.0.4:
@@ -12590,20 +12590,20 @@ snapshots:
 
   svelte-dev-helper@1.1.9: {}
 
-  svelte-hmr@0.14.12(svelte@5.16.2):
+  svelte-hmr@0.14.12(svelte@5.17.3):
     dependencies:
-      svelte: 5.16.2
+      svelte: 5.17.3
 
-  svelte-loader@3.2.4(svelte@5.16.2):
+  svelte-loader@3.2.4(svelte@5.17.3):
     dependencies:
       loader-utils: 2.0.4
-      svelte: 5.16.2
+      svelte: 5.17.3
       svelte-dev-helper: 1.1.9
-      svelte-hmr: 0.14.12(svelte@5.16.2)
+      svelte-hmr: 0.14.12(svelte@5.17.3)
 
-  svelte-preprocess@6.0.3(@babel/core@7.26.0)(less@4.2.1)(postcss-load-config@6.0.1(jiti@1.21.7)(postcss@8.4.49)(yaml@2.6.0))(postcss@8.4.49)(sass@1.83.1)(stylus@0.64.0)(svelte@5.16.2)(typescript@5.7.2):
+  svelte-preprocess@6.0.3(@babel/core@7.26.0)(less@4.2.1)(postcss-load-config@6.0.1(jiti@1.21.7)(postcss@8.4.49)(yaml@2.6.0))(postcss@8.4.49)(sass@1.83.1)(stylus@0.64.0)(svelte@5.17.3)(typescript@5.7.2):
     dependencies:
-      svelte: 5.16.2
+      svelte: 5.17.3
     optionalDependencies:
       '@babel/core': 7.26.0
       less: 4.2.1
@@ -12613,7 +12613,7 @@ snapshots:
       stylus: 0.64.0
       typescript: 5.7.2
 
-  svelte@5.16.2:
+  svelte@5.17.3:
     dependencies:
       '@ampproject/remapping': 2.3.0
       '@jridgewell/sourcemap-codec': 1.5.0