diff --git a/package.json b/package.json
index bf08d20..f59b550 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@biomejs/biome": "1.9.4",
     "@changesets/cli": "2.29.2",
     "bunchee": "6.5.0",
-    "typescript": "5.8.3",
+    "typescript": "5.9.3",
     "vitest": "4.0.17"
   },
   "engines": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index fed4dd4..8321e92 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -19,10 +19,10 @@ importers:
         version: 2.29.2
       bunchee:
         specifier: 6.5.0
-        version: 6.5.0(typescript@5.8.3)
+        version: 6.5.0(typescript@5.9.3)
       typescript:
-        specifier: 5.8.3
-        version: 5.8.3
+        specifier: 5.9.3
+        version: 5.9.3
       vitest:
         specifier: 4.0.17
         version: 4.0.17
@@ -1366,8 +1366,8 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
-  typescript@5.8.3:
-    resolution: {integrity: sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==}
+  typescript@5.9.3:
+    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
     engines: {node: '>=14.17'}
     hasBin: true
 
@@ -2097,7 +2097,7 @@ snapshots:
     dependencies:
       fill-range: 7.1.1
 
-  bunchee@6.5.0(typescript@5.8.3):
+  bunchee@6.5.0(typescript@5.9.3):
     dependencies:
       '@rollup/plugin-commonjs': 28.0.9(rollup@4.55.1)
       '@rollup/plugin-json': 6.1.0(rollup@4.55.1)
@@ -2114,13 +2114,13 @@ snapshots:
       picomatch: 4.0.3
       pretty-bytes: 5.6.0
       rollup: 4.55.1
-      rollup-plugin-dts: 6.3.0(rollup@4.55.1)(typescript@5.8.3)
+      rollup-plugin-dts: 6.3.0(rollup@4.55.1)(typescript@5.9.3)
       rollup-plugin-swc3: 0.11.2(@swc/core@1.15.8(@swc/helpers@0.5.18))(rollup@4.55.1)
       rollup-preserve-directives: 1.1.3(rollup@4.55.1)
       tslib: 2.8.1
       yargs: 17.7.2
     optionalDependencies:
-      typescript: 5.8.3
+      typescript: 5.9.3
 
   chai@6.2.2: {}
 
@@ -2567,11 +2567,11 @@ snapshots:
 
   reusify@1.1.0: {}
 
-  rollup-plugin-dts@6.3.0(rollup@4.55.1)(typescript@5.8.3):
+  rollup-plugin-dts@6.3.0(rollup@4.55.1)(typescript@5.9.3):
     dependencies:
       magic-string: 0.30.21
       rollup: 4.55.1
-      typescript: 5.8.3
+      typescript: 5.9.3
     optionalDependencies:
       '@babel/code-frame': 7.28.6
 
@@ -2729,7 +2729,7 @@ snapshots:
 
   typescript@5.6.1-rc: {}
 
-  typescript@5.8.3: {}
+  typescript@5.9.3: {}
 
   unicode-emoji-modifier-base@1.0.0: {}