diff --git a/package.json b/package.json
index ece560e..6abfedf 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "isomorphic-fetch": "^2.2.1",
     "jest": "^21.2.1",
     "json-markup": "^1.1.0",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.21",
     "logfmt": "^1.2.0",
     "moment": "^2.18.1",
     "prop-types": "^15.5.10",
diff --git a/yarn.lock b/yarn.lock
index 1ab7c4c..d133c23 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5145,9 +5145,9 @@ lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-"lodash@>=3.5 <5", lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.5, lodash@^4.17.2, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+"lodash@>=3.5 <5", lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.5, lodash@^4.17.2, lodash@^4.17.21, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@^3.10.0:
   version "3.10.1"