diff --git a/.vscode/settings.json b/.vscode/settings.json
index 17ae5d7..889ad78 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -15,4 +15,5 @@
     "editor.codeActionsOnSave": {
         "source.fixAll.eslint": true
     },
+    "typescript.tsdk": "node_modules/typescript/lib",
 }
diff --git a/package-lock.json b/package-lock.json
index 2f7c9ed..31d68e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1917,9 +1917,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.1.1-rc",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.1-rc.tgz",
+      "integrity": "sha512-tgNcFrLIjlaMWEc7bKC0bxLNIt8BIAauY/HLUOQDyTP75HGskETtXOt46x4EKAHRKhWVLMc7yM02puTHa/yhCA==",
       "dev": true
     },
     "unicode-properties": {
diff --git a/package.json b/package.json
index c431243..93d2cd2 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-typescript": "^1.0.1",
     "tslib": "^1.10.0",
-    "typescript": "^3.9.7"
+    "typescript": "^4.1.1-rc"
   },
   "scripts": {
     "build": "rollup -c",