diff --git a/package-lock.json b/package-lock.json
index 6231ba0..6bacf66 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1092,6 +1092,11 @@
           "version": "1.5.2",
           "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
           "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+        },
+        "lodash": {
+          "version": "3.10.1",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+          "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y="
         }
       }
     },
@@ -1593,9 +1598,9 @@
       }
     },
     "lodash": {
-      "version": "3.10.1",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
-      "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash.assign": {
       "version": "4.2.0",
diff --git a/package.json b/package.json
index 0256995..797b513 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "express": "^4.11.0",
     "google-spreadsheet": "^2.0.4",
     "joi": "^10.6.0",
-    "lodash": "^3.10.1",
+    "lodash": "^4.17.21",
     "moment": "^2.18.1",
     "morgan": "^1.5.1",
     "newrelic": "^1.18.0",