diff --git a/package-lock.json b/package-lock.json
index 429059d81..6d726d005 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29629,9 +29629,9 @@
       "integrity": "sha512-QW61P4cOX8dCNmrfpcUMjvU/MF/sFTC8/PlG9215W1gKDzZUBjRGdyYSO6ZcEUNsn491S2VpryJOHSIVSDqJrg=="
     },
     "typescript": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
-      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==",
+      "version": "4.3.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.4.tgz",
+      "integrity": "sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==",
       "dev": true
     },
     "typescript-nullable": {
diff --git a/package.json b/package.json
index 2a78fa485..882cd5f17 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
     "stylelint": "^13.5.0",
     "stylelint-webpack-plugin": "^2.0.0",
     "symbol-observable": "^1.2.0",
-    "typescript": "^3.8.3",
+    "typescript": "^4.3.4",
     "weallbehave": "^1.2.0",
     "webpack-bundle-analyzer": "^3.8.0",
     "webpack-notifier": "^1.8.0",