diff --git a/package.json b/package.json
index da88cc036..cb53e6016 100644
--- a/package.json
+++ b/package.json
@@ -27,10 +27,10 @@
   },
   "devDependencies": {
     "chai": "~2.1.0",
-    "coveralls": "^2.13.1",
-    "mocha": "^2.1.0",
+    "coveralls": "^3.0.2",
+    "mocha": "^5.2.0",
     "mockery": "^1.4.0",
-    "nyc": "^11.0.2",
+    "nyc": "^13.0.0",
     "semantic-release": "^15.9.3",
     "sinon": "~1.17.0",
     "sinon-chai": "^2.8.0",