diff --git a/package-lock.json b/package-lock.json
index 108cf02..c764756 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2873,9 +2873,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.19",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
-      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash.sortby": {
       "version": "4.7.0",
diff --git a/package.json b/package.json
index 89259f9..b091d6f 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "license": "ISC",
   "dependencies": {
     "jest": "^24.9.0",
-    "lodash": "^4.17.19",
+    "lodash": "^4.17.21",
     "node-dijkstra": "^2.5.0"
   }
 }