diff --git a/package.json b/package.json
index 0a861d8..7b24571 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "devDependencies": {
     "babel-cli": "^6.26.0",
     "babel-eslint": "^8.0.1",
-    "babel-plugin-istanbul": "^4.1.4",
+    "babel-plugin-istanbul": "^5.2.0",
     "babel-plugin-transform-class-properties": "^6.24.1",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-preset-env": "^1.7.0",