diff --git a/package-lock.json b/package-lock.json
index a0cb9e9..0576118 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6407,9 +6407,9 @@
       }
     },
     "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=="
     },
     "lodash.assign": {
       "version": "4.2.0",
diff --git a/package.json b/package.json
index 9fdf6d0..6295fe6 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "classnames": "^2.2.6",
     "core-js": "^3.0.1",
     "epub-gen": "^0.1.0",
-    "lodash": "^4.17.15",
+    "lodash": "^4.17.21",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
     "react-redux": "^7.1.0",