diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 21800c9..f52ec94 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -1,21 +1,29 @@
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diff --git a/package.json b/package.json
index 4af1151..62dd7dd 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
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     "assert": "^1.1.1",
     "async": "^0.6.2",
-    "lodash": "^2.4.1",
+    "lodash": "^4.17.21",
     "mocha": "^2.2.4",
     "request": "https://registry.npmjs.org/request/-/request-2.34.0.tgz"
   },