diff --git a/package-lock.json b/package-lock.json
index b54ff62..7692d81 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1046,9 +1046,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "log-symbols": {
       "version": "3.0.0",
diff --git a/package.json b/package.json
index 8aca1b1..41eb8a2 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "express": "^4.17.1",
     "hyphenopoly": "^3.2.1",
     "katex": "^0.11.1",
-    "lodash": "^4.17.15",
+    "lodash": "^4.17.21",
     "mathjax": "^3.0.0",
     "node-fetch": "^2.6.0",
     "ora": "^4.0.2",