diff --git a/node_modules/is-arrayish/package.json b/node_modules/is-arrayish/package.json
index 47b168d296..93655610ce 100644
--- a/node_modules/is-arrayish/package.json
+++ b/node_modules/is-arrayish/package.json
@@ -25,8 +25,8 @@
   },
   "devDependencies": {
     "coffee-script": "^1.9.3",
-    "coveralls": "^2.11.2",
-    "istanbul": "^0.3.17",
+    "coveralls": "^3.0.0",
+    "istanbul": "^0.4.5",
     "mocha": "^2.2.5",
     "should": "^7.0.1",
     "xo": "^0.6.1"