diff --git a/package.json b/package.json
index facf2d4..29feca2 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "koa": "^2.2.0"
   },
   "devDependencies": {
-    "eslint": "^4.1.0",
+    "eslint": "^5.13.0",
     "eslint-config-semistandard": "^8.0.0",
     "eslint-config-standard": "^7.1.0",
     "eslint-plugin-promise": "^3.5.0",