diff --git a/package-lock.json b/package-lock.json
index baec91a..7e2e318 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3374,9 +3374,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.13",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.13.tgz",
-      "integrity": "sha512-vm3/XWXfWtRua0FkUyEHBZy8kCPjErNBT9fJx8Zvs+U6zjqPbTUOpkaoum3O5uiA8sm+yNMHXfYkTUHFoMxFNA=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash._baseassign": {
       "version": "3.2.0",
diff --git a/package.json b/package.json
index 073fbaa..c38426e 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "codecov": "^2.3.0",
     "ethereumjs-testrpc": "^4.1.1",
     "lerna": "^2.0.0",
-    "lodash": "^4.17.13",
+    "lodash": "^4.17.21",
     "mocha-lcov-reporter": "^1.3.0",
     "solidity-coverage": "^0.2.2",
     "truffle": "3.4.9",