diff --git a/package.json b/package.json
index 3c323d9..82f396d 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   "devDependencies": {
     "@types/encoding-japanese": "^1.0.15",
     "@types/mocha": "^5.0.0",
-    "@types/node": "^10.0.3",
+    "@types/node": "^13.1.6",
     "@types/power-assert": "^1.4.29",
     "cross-env": "^5.1.3",
     "espower-typescript": "^9.0.0",