diff --git a/package-lock.json b/package-lock.json
index 1578718..a823b97 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -648,9 +648,9 @@
             "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
         },
         "typescript": {
-            "version": "3.9.7",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-            "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+            "version": "4.0.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.2.tgz",
+            "integrity": "sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==",
             "dev": true
         },
         "universalify": {
diff --git a/package.json b/package.json
index adbf3be..d9ad215 100644
--- a/package.json
+++ b/package.json
@@ -328,7 +328,7 @@
     "devDependencies": {
         "@types/follow-redirects": "^1.8.0",
         "@types/node": "~10.17.19",
-        "typescript": "~3.9.2",
+        "typescript": "~4.0.2",
         "coc.nvim": "~0.0.77"
     }
 }