diff --git a/package.json b/package.json
index e2a8535..0e44fd3 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "oxlint": "^1.36.0",
     "oxlint-tsgolint": "^0.11.4",
     "tsup": "^8.5.1",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.3",
     "ultracite": "7.2.1",
     "vitest": "^4.0.16"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9457bb0..6ffc1ef 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -41,10 +41,10 @@ importers:
         version: 0.11.4
       tsup:
         specifier: ^8.5.1
-        version: 8.5.1(postcss@8.5.6)(typescript@5.9.3)
+        version: 8.5.1(postcss@8.5.6)(typescript@6.0.3)
       typescript:
-        specifier: ^5.9.3
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       ultracite:
         specifier: 7.2.1
         version: 7.2.1(oxlint@1.47.0(oxlint-tsgolint@0.11.4))
@@ -1110,8 +1110,8 @@ packages:
       typescript:
         optional: true
 
-  typescript@5.9.3:
-    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
+  typescript@6.0.3:
+    resolution: {integrity: sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==}
     engines: {node: '>=14.17'}
     hasBin: true
 
@@ -2036,7 +2036,7 @@ snapshots:
 
   ts-interface-checker@0.1.13: {}
 
-  tsup@8.5.1(postcss@8.5.6)(typescript@5.9.3):
+  tsup@8.5.1(postcss@8.5.6)(typescript@6.0.3):
     dependencies:
       bundle-require: 5.1.0(esbuild@0.27.2)
       cac: 6.7.14
@@ -2057,14 +2057,14 @@ snapshots:
       tree-kill: 1.2.2
     optionalDependencies:
       postcss: 8.5.6
-      typescript: 5.9.3
+      typescript: 6.0.3
     transitivePeerDependencies:
       - jiti
       - supports-color
       - tsx
       - yaml
 
-  typescript@5.9.3: {}
+  typescript@6.0.3: {}
 
   ufo@1.6.1: {}