diff --git a/package.json b/package.json
index d0891f7..f7436e2 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "gulp": "^3.9.1",
     "gulp-esdoc": "^0.2.0",
     "gulp-eslint": "^2.0.0",
-    "gulp-istanbul": "^0.10.4",
+    "gulp-istanbul": "^1.0.0",
     "gulp-mocha": "^2.2.0",
     "mocha": "^2.5.1",
     "somersault": "^1.1.1",