diff --git a/package-lock.json b/package-lock.json
index 954e50ea..43007f12 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "devDependencies": {
         "@astrojs/check": "^0.9.9",
         "astro": "^6.2.1",
-        "typescript": "^5.9.3",
+        "typescript": "^6.0.3",
         "zod": "^4.4.2"
       }
     },
@@ -2184,6 +2184,27 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/astro/node_modules/tsconfck": {
+      "version": "3.1.6",
+      "resolved": "https://registry.npmjs.org/tsconfck/-/tsconfck-3.1.6.tgz",
+      "integrity": "sha512-ks6Vjr/jEw0P1gmOVwutM3B7fWxoWBL2KRDb1JfqGVawBmO5UsvmWOQFGHBPl5yxYz4eERr19E6L7NMv+Fej4w==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "tsconfck": "bin/tsconfck.js"
+      },
+      "engines": {
+        "node": "^18 || >=20"
+      },
+      "peerDependencies": {
+        "typescript": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/astro/node_modules/yargs-parser": {
       "version": "22.0.0",
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-22.0.0.tgz",
@@ -5070,27 +5091,6 @@
         "url": "https://github.com/sponsors/wooorm"
       }
     },
-    "node_modules/tsconfck": {
-      "version": "3.1.6",
-      "resolved": "https://registry.npmjs.org/tsconfck/-/tsconfck-3.1.6.tgz",
-      "integrity": "sha512-ks6Vjr/jEw0P1gmOVwutM3B7fWxoWBL2KRDb1JfqGVawBmO5UsvmWOQFGHBPl5yxYz4eERr19E6L7NMv+Fej4w==",
-      "dev": true,
-      "license": "MIT",
-      "bin": {
-        "tsconfck": "bin/tsconfck.js"
-      },
-      "engines": {
-        "node": "^18 || >=20"
-      },
-      "peerDependencies": {
-        "typescript": "^5.0.0"
-      },
-      "peerDependenciesMeta": {
-        "typescript": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/tslib": {
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
@@ -5107,9 +5107,9 @@
       "license": "MIT"
     },
     "node_modules/typescript": {
-      "version": "5.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
-      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
+      "integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index 89433eba..b92dce8c 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "@astrojs/check": "^0.9.9",
     "astro": "^6.2.1",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.3",
     "zod": "^4.4.2"
   }
 }