diff --git a/package.json b/package.json
index 9368cf1..b6e1e44 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
         "codecov": "^3.7.0",
         "get-stream": "^5.1.0",
         "node-fetch": "^2.6.0",
-        "typescript": "^3.9.5",
+        "typescript": "^4.2.3",
         "xo": "^0.32.0"
     },
     "xo": {