diff --git a/package.json b/package.json
index cdab766..7e6f138 100644
--- a/package.json
+++ b/package.json
@@ -36,9 +36,9 @@
   "dependencies": {},
   "devDependencies": {
     "coveralls": "^2.11.2",
-    "istanbul": "^0.3.2",
-    "mocha": "^2.0.1",
-    "mocha-lcov-reporter": "0.0.1"
+    "istanbul": "^0.4.5",
+    "mocha": "^3.1.2",
+    "mocha-lcov-reporter": "1.2.0"
   },
   "engines": {
     "node": ">= 0.10.33",