diff --git a/package.json b/package.json
index b6247af..a1bc65a 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "express": "4.14.0",
     "history": "3.2.1",
     "isomorphic-fetch": "2.2.1",
-    "lodash": "4.15.0",
+    "lodash": "4.17.21",
     "lost": "7.1.0",
     "mobile-detect": "^1.3.5",
     "node-sass": "4.5.0",
diff --git a/yarn.lock b/yarn.lock
index 9ae4a6f..48acdf9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3013,9 +3013,9 @@ lodash@4.13.1:
   version "4.13.1"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.13.1.tgz#83e4b10913f48496d4d16fec4a560af2ee744b68"
 
-lodash@4.15.0, "lodash@>=3.5 <5", lodash@^4.0.0, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.6.1:
-  version "4.15.0"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.15.0.tgz#3162391d8f0140aa22cf8f6b3c34d6b7f63d3aa9"
+lodash@4.17.21, "lodash@>=3.5 <5", lodash@^4.0.0, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.6.1:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@^3.10.1:
   version "3.10.1"