diff --git a/package.json b/package.json
index ba57d0d..3379259 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "devDependencies": {
     "coveralls": "^2.11.4",
     "eslint-config-mongodb-js": "^0.1.6",
-    "istanbul": "^0.3.21",
+    "istanbul": "^0.3.22",
     "mocha": "~2.3.3",
     "mongodb-js-fmt": "0.0.3",
     "mongodb-js-precommit": "^0.2.2",