diff --git a/package.json b/package.json
index 04dc50e..2186cab 100644
--- a/package.json
+++ b/package.json
@@ -59,8 +59,8 @@
     "eslint": "^2.10.1",
     "eslint-config-airbnb-base": "^3.0.1",
     "eslint-plugin-import": "^1.8.0",
-    "mocha": "^2.4.5",
-    "nyc": "^6.4.0",
+    "mocha": "^5.2.0",
+    "nyc": "^12.0.2",
     "rimraf": "^2.5.2",
     "shelljs-changelog": "^0.2.0",
     "shelljs-plugin-open": "^0.2.0",