diff --git a/package.json b/package.json
index dc5213c..659c5dc 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   },
   "devDependencies": {
     "babel-cli": "^6.10.1",
-    "babel-plugin-istanbul": "^3.0.0",
+    "babel-plugin-istanbul": "^4.0.0",
     "babel-plugin-transform-async-to-generator": "^6.8.0",
     "babel-plugin-transform-es2015-destructuring": "^6.9.0",
     "babel-plugin-transform-es2015-parameters": "^6.11.3",