diff --git a/package.json b/package.json
index 10347d8..3e09bc8 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   "devDependencies": {
     "chai": "^4.2.0",
     "hexo": "^3.1.1",
-    "mocha": "^5.2.0",
+    "mocha": "^6.0.2",
     "istanbul": "^0.4.2",
     "eslint": "^5.11.0",
     "eslint-config-hexo": "^3.0.0"