diff --git a/package-lock.json b/package-lock.json
index f9a3c44..39f449a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2963,9 +2963,9 @@
       "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg=="
     },
     "async": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
-      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "requires": {
         "lodash": "^4.17.14"
       }
@@ -4214,14 +4214,6 @@
           "resolved": "https://registry.npmjs.org/astral-regex/-/astral-regex-1.0.0.tgz",
           "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg=="
         },
-        "async": {
-          "version": "2.6.3",
-          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
-          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
-          "requires": {
-            "lodash": "^4.17.14"
-          }
-        },
         "async-each": {
           "version": "1.0.3",
           "resolved": "https://registry.npmjs.org/async-each/-/async-each-1.0.3.tgz",
@@ -6970,7 +6962,6 @@
               "resolved": "https://registry.npmjs.org/merkle-patricia-tree/-/merkle-patricia-tree-2.3.2.tgz",
               "integrity": "sha512-81PW5m8oz/pz3GvsAwbauj7Y00rqm81Tzad77tHBwU7pIAtN+TJnMSOJhxBKflSVYhptMMb9RskhqHqrSm1V+g==",
               "requires": {
-                "async": "^1.4.2",
                 "ethereumjs-util": "^5.0.0",
                 "level-ws": "0.0.0",
                 "levelup": "^1.2.1",
@@ -6978,13 +6969,6 @@
                 "readable-stream": "^2.0.0",
                 "rlp": "^2.0.0",
                 "semaphore": ">=1.0.1"
-              },
-              "dependencies": {
-                "async": {
-                  "version": "1.5.2",
-                  "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
-                  "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
-                }
               }
             },
             "semver": {
@@ -8232,20 +8216,7 @@
         "getos": {
           "version": "2.8.4",
           "resolved": "https://registry.npmjs.org/getos/-/getos-2.8.4.tgz",
-          "integrity": "sha1-e4YD02GcKOOMsP56T2PDrLgNUWM=",
-          "requires": {
-            "async": "2.1.4"
-          },
-          "dependencies": {
-            "async": {
-              "version": "2.1.4",
-              "resolved": "https://registry.npmjs.org/async/-/async-2.1.4.tgz",
-              "integrity": "sha1-LSFgx3iAMuTdbL4lAvH5osj2zeQ=",
-              "requires": {
-                "lodash": "^4.14.0"
-              }
-            }
-          }
+          "integrity": "sha1-e4YD02GcKOOMsP56T2PDrLgNUWM="
         },
         "getpass": {
           "version": "0.1.7",
diff --git a/yarn.lock b/yarn.lock
index 9dd33e2..de7c5a4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2513,9 +2513,9 @@ async-limiter@~1.0.0:
   integrity sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==
 
 async@^2.6.1, async@^2.6.2:
-  version "2.6.3"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
-  integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
+  integrity sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==
   dependencies:
     lodash "^4.17.14"
 
@@ -7562,9 +7562,9 @@ lodash.uniq@^4.5.0:
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
 "lodash@>=3.5 <5", lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.5:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 loglevel@^1.6.6:
   version "1.6.7"