diff --git a/node_modules/file-entry-cache/package.json b/node_modules/file-entry-cache/package.json
index c15ee913c5..f3e0d0299d 100644
--- a/node_modules/file-entry-cache/package.json
+++ b/node_modules/file-entry-cache/package.json
@@ -68,7 +68,7 @@
     "esbeautifier": "^4.2.11",
     "eslinter": "^2.3.3",
     "glob-expand": "^0.1.0",
-    "istanbul": "^0.3.6",
+    "istanbul": "^0.4.5",
     "mocha": "^2.1.0",
     "precommit": "^1.1.5",
     "prepush": "^3.1.4",