diff --git a/package-lock.json b/package-lock.json
index 98da7a6..71346c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3737,9 +3737,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.20",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
-      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA=="
+      "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 822221a..08cb0a5 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "prettier": "2.0.5"
   },
   "dependencies": {
-    "lodash": "^4.17.20",
+    "lodash": "^4.17.21",
     "quadratic-solver": "^0.2.4"
   }
 }