diff --git a/package.json b/package.json
index f5351ac..855c087 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "gulp": "^3.9.0",
     "gulp-coverage": "^0.3.36",
     "gulp-coveralls": "^0.1.4",
-    "gulp-istanbul": "^0.10.2",
+    "gulp-istanbul": "^1.1.1",
     "gulp-mocha": "^2.1.3",
     "linear-arbitrary-precision": "^3.1.0",
     "rimraf": "^2.4.3",