diff --git a/package.json b/package.json
index 31cfe83..ecaba23 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "ethers": "^4.0.15",
     "ganache-cli": "^6.1.8",
     "keccak": "^2.0.0",
-    "lodash": "^4.17.11",
+    "lodash": "^4.17.19",
     "openzeppelin-solidity": "git://github.com/marbleprotocol/openzeppelin-solidity.git#d1858de",
     "rlp": "^2.2.2",
     "web3": "^1.0.0-beta.36",
diff --git a/yarn.lock b/yarn.lock
index e934de5..57f5d1a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4917,7 +4917,7 @@ lodash@4.17.10:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
   integrity sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==
 
-lodash@4.17.11, lodash@=4.17.11, lodash@^4.14.2, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5:
+lodash@4.17.11, lodash@=4.17.11:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
@@ -4927,6 +4927,11 @@ lodash@=4.17.4:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
   integrity sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=
 
+lodash@^4.14.2, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.19, lodash@^4.17.4, lodash@^4.17.5:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
+
 log-symbols@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"