diff --git a/package-lock.json b/package-lock.json
index 96d24a08..a6916d03 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14306,9 +14306,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.3.3333",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.3.3333.tgz",
-      "integrity": "sha512-JjSKsAfuHBE/fB2oZ8NxtRTk5iGcg6hkYXMnZ3Wc+b2RSqejEqTaem11mHASMnFilHrax3sLK0GDzcJrekZYLw==",
+      "version": "3.9.10",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
+      "integrity": "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==",
       "dev": true
     },
     "uc.micro": {
diff --git a/package.json b/package.json
index 1d5d5cd9..d3af8502 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "tslint-microsoft-contrib": "6.2.0",
     "typedoc": "0.15.0",
     "typedoc-plugin-markdown": "2.1.3",
-    "typescript": "3.3.3333",
+    "typescript": "3.9.10",
     "vuepress": "1.0.2"
   },
   "engines": {