diff --git a/deps/npm/node_modules/asn1/package.json b/deps/npm/node_modules/asn1/package.json
index 2b51c753c97a47..5ae69a1d690191 100644
--- a/deps/npm/node_modules/asn1/package.json
+++ b/deps/npm/node_modules/asn1/package.json
@@ -18,7 +18,7 @@
     "safer-buffer": "~2.1.0"
   },
   "devDependencies": {
-    "istanbul": "^0.3.6",
+    "istanbul": "^0.4.5",
     "faucet": "0.0.1",
     "tape": "^3.5.0",
     "eslint": "2.13.1",