diff --git a/package-lock.json b/package-lock.json
index b894286..9079b16 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -203,6 +203,32 @@
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+    },
     "rimraf": {
       "version": "2.6.2",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
@@ -4343,6 +4598,15 @@
         "is-promise": "2.1.0"
       }
     },
+    "run-parallel": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.2.0.tgz",
+      "integrity": "sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA==",
+      "dev": true,
+      "requires": {
+        "queue-microtask": "^1.2.2"
+      }
+    },
     "rx-lite": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/rx-lite/-/rx-lite-4.0.8.tgz",
diff --git a/package.json b/package.json
index 8190c81..bd6dd5f 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "babel-polyfill": "^6.26.0",
     "babel-preset-env": "^1.6.1",
     "babel-preset-stage-0": "^6.24.1",
-    "del": "^3.0.0",
+    "del": "^6.1.1",
     "eslint": "^4.19.1",
     "eslint-config-airbnb-base": "^12.1.0",
     "eslint-plugin-import": "^2.11.0",