diff --git a/package-lock.json b/package-lock.json
index 899be75..448f26c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,7 +26,7 @@
         "rollup": "^4.44.0",
         "rollup-plugin-copy": "^3.5.0",
         "tslib": "^2.8.1",
-        "typescript": "^5.8.3"
+        "typescript": "^5.9.2"
       }
     },
     "node_modules/@codemirror/state": {
@@ -2071,10 +2071,11 @@
       "dev": true
     },
     "node_modules/typescript": {
-      "version": "5.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+      "version": "5.9.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
+      "integrity": "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==",
       "dev": true,
+      "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/package.json b/package.json
index 58f2a50..45f463b 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "rollup": "^4.44.0",
     "rollup-plugin-copy": "^3.5.0",
     "tslib": "^2.8.1",
-    "typescript": "^5.8.3"
+    "typescript": "^5.9.2"
   },
   "dependencies": {
     "d3": "^7.9.0",