diff --git a/package.json b/package.json
index cc71b2dd..ffc18659 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "cheerio": "^0.20.0",
     "coveralls": "^2.11.2",
     "eslint": "^2.2.0",
-    "istanbul": "^0.4.0",
+    "istanbul": "^0.4.4",
     "js-yaml": "^3.5.4",
     "mocha": "^2.4.5",
     "mocha-lcov-reporter": "^1.0.0",