diff --git a/package-lock.json b/package-lock.json
index 004a8d02..f903120c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,7 +33,7 @@
         "npm-run-all2": "^8.0.4",
         "prettier": "^3.7.4",
         "sass": "^1.97.1",
-        "typescript": "^5.3.3",
+        "typescript": "^5.9.3",
         "vite": "^6.4.1",
         "yaml": "^2.3.4"
       }
@@ -2610,18 +2610,6 @@
         "@types/geojson": "*"
       }
     },
-    "node_modules/@types/node": {
-      "version": "25.0.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.0.3.tgz",
-      "integrity": "sha512-W609buLVRVmeW693xKfzHeIV6nJGGz98uCPfeXI1ELMLXVeKYZ9m15fAMSaUPBHYLGFsVRcMmSCksQOrZV9BYA==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
-      "dependencies": {
-        "undici-types": "~7.16.0"
-      }
-    },
     "node_modules/@types/supercluster": {
       "version": "7.1.3",
       "resolved": "https://registry.npmjs.org/@types/supercluster/-/supercluster-7.1.3.tgz",
@@ -6526,10 +6514,11 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.3.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.3.3.tgz",
-      "integrity": "sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
+      "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -6545,15 +6534,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/undici-types": {
-      "version": "7.16.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
-      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true
-    },
     "node_modules/union": {
       "version": "0.5.0",
       "resolved": "https://registry.npmjs.org/union/-/union-0.5.0.tgz",
diff --git a/package.json b/package.json
index a44cf7c8..c2bc89f8 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "npm-run-all2": "^8.0.4",
     "prettier": "^3.7.4",
     "sass": "^1.97.1",
-    "typescript": "^5.3.3",
+    "typescript": "^5.9.3",
     "vite": "^6.4.1",
     "yaml": "^2.3.4"
   },