diff --git a/package-lock.json b/package-lock.json
index 7c20419e..c5d05933 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12112,9 +12112,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "2.9.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.9.2.tgz",
-      "integrity": "sha512-Gr4p6nFNaoufRIY4NMdpQRNmgxVIGMs4Fcu/ujdYk3nAZqk7supzBE9idmvfZIlH/Cuj//dvi+019qEue9lV0w==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.5.tgz",
+      "integrity": "sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index ab1f40f0..250bbf7f 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "nyc": "11.9.0",
     "power-assert": "1.6.1",
     "rimraf": "2.7.1",
-    "typescript": "2.9.2"
+    "typescript": "4.0.5"
   },
   "publishConfig": {
     "access": "public"