diff --git a/docs/package.json b/docs/package.json
index eff7670..b3a2f2f 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -41,7 +41,7 @@
     "react-maptalks": "0.0.1",
     "rollup": "^2.49.0",
     "three": "^0.130.1",
-    "typescript": "^4.3.5",
+    "typescript": "^4.9.4",
     "url-loader": "^4.1.1"
   },
   "browserslist": {
diff --git a/package.json b/package.json
index 9ff5dd5..662555b 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,6 @@
     "rollup": "^2.49.0",
     "three": "^0.130.1",
     "tslib": "^2.3.0",
-    "typescript": "^4.3.5"
+    "typescript": "^4.9.4"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 0cf4b3c..0ba5481 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11408,10 +11408,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@^4.3.5:
-  version "4.3.5"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.5.tgz#4d1c37cc16e893973c45a06886b7113234f119f4"
-  integrity sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==
+typescript@^4.9.4:
+  version "4.9.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.4.tgz#a2a3d2756c079abda241d75f149df9d561091e78"
+  integrity sha512-Uz+dTXYzxXXbsFpM86Wh3dKCxrQqUcVMxwU54orwlJjOpO3ao8L7j5lH+dWfTwgCwIuM9GQ2kvVotzYJMXTBZg==
 
 ua-parser-js@^0.7.18:
   version "0.7.28"