diff --git a/pdb-js/package-lock.json b/pdb-js/package-lock.json
index a4edc93..dfe5d2b 100644
--- a/pdb-js/package-lock.json
+++ b/pdb-js/package-lock.json
@@ -12276,9 +12276,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.5.tgz",
+      "integrity": "sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ==",
       "dev": true
     },
     "ua-parser-js": {
diff --git a/pdb-js/package.json b/pdb-js/package.json
index db2d7b5..570bf4d 100644
--- a/pdb-js/package.json
+++ b/pdb-js/package.json
@@ -47,6 +47,6 @@
     "protractor": "~7.0.0",
     "ts-node": "~8.5.4",
     "tslint": "~6.1.0",
-    "typescript": "~3.9.7"
+    "typescript": "~4.0.0"
   }
 }