diff --git a/backend/package-lock.json b/backend/package-lock.json
index f1d3520..993c48b 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -1616,9 +1616,9 @@
       "integrity": "sha1-2qBoIGKCVCwIgojpdcKXwa53tpA="
     },
     "lodash": {
-      "version": "4.17.4",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
-      "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash._baseassign": {
       "version": "3.2.0",
diff --git a/backend/package.json b/backend/package.json
index 2b609ba..b67462d 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -14,7 +14,7 @@
     "body-parser": "^1.15.2",
     "express": "^4.14.0",
     "express-query-int": "^1.0.1",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.21",
     "mongoose": "^4.13.19",
     "mongoose-paginate": "^5.0.3",
     "node-restful": "^0.2.5",