diff --git a/package-lock.json b/package-lock.json
index 94ea519..a6ff103 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2035,9 +2035,9 @@
       }
     },
     "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=="
     },
     "longest": {
       "version": "1.0.1",
diff --git a/package.json b/package.json
index 1d1aabc..bc2fc2b 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "babel-preset-env": "^1.6.1",
     "d3": "^4.13.0",
     "http-server": "^0.12.3",
-    "lodash": "^4.17.13",
+    "lodash": "^4.17.21",
     "webpack": "^3.11.0"
   }
 }