diff --git a/package.json b/package.json
index 6cc7220..7e96839 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
   "devDependencies": {
     "chai": "^4.1.2",
     "chai-json-schema": "^1.3.0",
-    "del": "^3.0.0",
+    "del": "^5.1.0",
     "grunt": "^1.0.1",
     "grunt-bump": "^0.8.0",
     "grunt-cli": "^1.2.0",