diff --git a/ractive-koa/package-lock.json b/ractive-koa/package-lock.json
index e76ee08..eb89d74 100644
--- a/ractive-koa/package-lock.json
+++ b/ractive-koa/package-lock.json
@@ -1035,9 +1035,9 @@
             "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
         },
         "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==",
             "dev": true
         },
         "longest": {
diff --git a/ractive-koa/package.json b/ractive-koa/package.json
index e2680fc..634c419 100644
--- a/ractive-koa/package.json
+++ b/ractive-koa/package.json
@@ -24,6 +24,6 @@
         "start": "node app.js"
     },
     "devDependencies": {
-        "lodash": "^4.17.19"
+        "lodash": "^4.17.21"
     }
 }