diff --git a/typescript-backbone/package-lock.json b/typescript-backbone/package-lock.json
index a82e63a..4fb63f3 100644
--- a/typescript-backbone/package-lock.json
+++ b/typescript-backbone/package-lock.json
@@ -8,7 +8,7 @@
         "backbone": "^1.1.2",
         "backbone.localstorage": "^1.1.16",
         "jquery": "^2.1.3",
-        "lodash": "^4.17.21",
+        "lodash": "^4.17.23",
         "todomvc-app-css": "^2.0.0",
         "todomvc-common": "^1.0.1"
       },
@@ -38,9 +38,9 @@
       "integrity": "sha1-LInWiJterFIqfuoywUUhVZxsvwI="
     },
     "node_modules/lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+      "version": "4.17.23",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
+      "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w=="
     },
     "node_modules/todomvc-app-css": {
       "version": "2.4.1",
@@ -85,9 +85,9 @@
       "integrity": "sha1-LInWiJterFIqfuoywUUhVZxsvwI="
     },
     "lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+      "version": "4.17.23",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
+      "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w=="
     },
     "todomvc-app-css": {
       "version": "2.4.1",
diff --git a/typescript-backbone/package.json b/typescript-backbone/package.json
index 15f5628..fdc5657 100644
--- a/typescript-backbone/package.json
+++ b/typescript-backbone/package.json
@@ -4,7 +4,7 @@
     "backbone": "^1.1.2",
     "backbone.localstorage": "^1.1.16",
     "jquery": "^2.1.3",
-    "lodash": "^4.17.21",
+    "lodash": "^4.17.23",
     "todomvc-app-css": "^2.0.0",
     "todomvc-common": "^1.0.1"
   },