diff --git a/packages/lib-ethers/package.json b/packages/lib-ethers/package.json
index 2fdca080c0..d411d3b4a4 100644
--- a/packages/lib-ethers/package.json
+++ b/packages/lib-ethers/package.json
@@ -46,7 +46,7 @@
     "@types/chai-spies": "1.0.3",
     "@types/fs-extra": "9.0.8",
     "@types/mocha": "8.2.1",
-    "@types/node": "14.14.34",
+    "@types/node": "16.4.10",
     "@types/sinon-chai": "3.2.5",
     "@types/ws": "7.4.4",
     "@typescript-eslint/eslint-plugin": "4.17.0",
@@ -58,7 +58,7 @@
     "dotenv": "8.2.0",
     "eslint": "7.22.0",
     "eslint-plugin-tsdoc": "0.2.11",
-    "ethers": "5.4.2",
+    "ethers": "5.4.3",
     "fs-extra": "9.1.0",
     "hardhat": "2.1.1",
     "npm-run-all": "4.1.5",
diff --git a/yarn.lock b/yarn.lock
index 37099c3ab7..aca29b00b8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1618,10 +1618,10 @@
     "@ethersproject/transactions" "^5.3.0"
     "@ethersproject/web" "^5.3.0"
 
-"@ethersproject/abstract-signer@5.4.0", "@ethersproject/abstract-signer@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.4.0.tgz#cd5f50b93141ee9f9f49feb4075a0b3eafb57d65"
-  integrity sha512-AieQAzt05HJZS2bMofpuxMEp81AHufA5D6M4ScKwtolj041nrfIbIi8ciNW7+F59VYxXq+V4c3d568Q6l2m8ew==
+"@ethersproject/abstract-signer@5.4.1":
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.4.1.tgz#e4e9abcf4dd4f1ba0db7dff9746a5f78f355ea81"
+  integrity sha512-SkkFL5HVq1k4/25dM+NWP9MILgohJCgGv5xT5AcRruGz4ILpfHeBtO/y6j+Z3UN/PAjDeb4P7E51Yh8wcGNLGA==
   dependencies:
     "@ethersproject/abstract-provider" "^5.4.0"
     "@ethersproject/bignumber" "^5.4.0"
@@ -1640,6 +1640,17 @@
     "@ethersproject/logger" "^5.3.0"
     "@ethersproject/properties" "^5.3.0"
 
+"@ethersproject/abstract-signer@^5.4.0":
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.4.0.tgz#cd5f50b93141ee9f9f49feb4075a0b3eafb57d65"
+  integrity sha512-AieQAzt05HJZS2bMofpuxMEp81AHufA5D6M4ScKwtolj041nrfIbIi8ciNW7+F59VYxXq+V4c3d568Q6l2m8ew==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.4.0"
+    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bytes" "^5.4.0"
+    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/properties" "^5.4.0"
+
 "@ethersproject/address@5.4.0", "@ethersproject/address@^5.4.0":
   version "5.4.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.4.0.tgz#ba2d00a0f8c4c0854933b963b9a3a9f6eb4a37a3"
@@ -1791,10 +1802,10 @@
   dependencies:
     "@ethersproject/bignumber" "^5.3.0"
 
-"@ethersproject/contracts@5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/contracts/-/contracts-5.4.0.tgz#e05fe6bd33acc98741e27d553889ec5920078abb"
-  integrity sha512-hkO3L3IhS1Z3ZtHtaAG/T87nQ7KiPV+/qnvutag35I0IkiQ8G3ZpCQ9NNOpSCzn4pWSW4CfzmtE02FcqnLI+hw==
+"@ethersproject/contracts@5.4.1":
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/contracts/-/contracts-5.4.1.tgz#3eb4f35b7fe60a962a75804ada2746494df3e470"
+  integrity sha512-m+z2ZgPy4pyR15Je//dUaymRUZq5MtDajF6GwFbGAVmKz/RF+DNIPwF0k5qEcL3wPGVqUjFg2/krlCRVTU4T5w==
   dependencies:
     "@ethersproject/abi" "^5.4.0"
     "@ethersproject/abstract-provider" "^5.4.0"
@@ -1981,10 +1992,10 @@
   dependencies:
     "@ethersproject/logger" "^5.3.0"
 
-"@ethersproject/providers@5.4.2":
-  version "5.4.2"
-  resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.4.2.tgz#73df9767869a31bd88d9e27e78cff96364b8fbed"
-  integrity sha512-Qr8Am8hlj2gL9HwNymhFlYd52MQVVEBLoDwPxhv4ASeyNpaoRiUAQnNEuE6SnEQtiwYkpLrQtSALNLUSeyuvjA==
+"@ethersproject/providers@5.4.3":
+  version "5.4.3"
+  resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.4.3.tgz#4cd7ccd9e12bc3875b33df8b24abf735663958a5"
+  integrity sha512-VURwkaWPoUj7jq9NheNDT5Iyy64Qcyf6BOFDwVdHsmLmX/5prNjFrgSX3GHPE4z1BRrVerDxe2yayvXKFm/NNg==
   dependencies:
     "@ethersproject/abstract-provider" "^5.4.0"
     "@ethersproject/abstract-signer" "^5.4.0"
@@ -3963,10 +3974,10 @@
     "@types/node" "*"
     form-data "^3.0.0"
 
-"@types/node@*", "@types/node@14.14.34":
-  version "14.14.34"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.34.tgz#07935194fc049069a1c56c0c274265abeddf88da"
-  integrity sha512-dBPaxocOK6UVyvhbnpFIj2W+S+1cBTkHQbFQfeeJhoKFbzYcVUGHvddeWPSucKATb3F0+pgDq0i6ghEaZjsugA==
+"@types/node@*", "@types/node@16.4.10":
+  version "16.4.10"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-16.4.10.tgz#e57e2a54fc6da58da94b3571b1cb456d39f88597"
+  integrity sha512-TmVHsm43br64js9BqHWqiDZA+xMtbUpI1MBIA0EyiBmoV9pcEYFOSdj5fr6enZNfh4fChh+AGOLIzGwJnkshyQ==
 
 "@types/node@10.17.13":
   version "10.17.13"
@@ -9161,21 +9172,21 @@ ethereumjs-util@^7.0.2, ethereumjs-util@^7.0.9:
     ethjs-util "0.1.6"
     rlp "^2.2.4"
 
-ethers@5.4.2, ethers@^5.4.2:
-  version "5.4.2"
-  resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.4.2.tgz#91368e4d9c39f1111157de1c2aa1d8c1616c0f7b"
-  integrity sha512-JcFcNWjULzhm4tMp5cZKnU45zqN/c7rqabIITiUiQzZuP7LcYSD4WAbADo4Ja6G2orU4d/PbhAWGHGtAKYrB4Q==
+ethers@5.4.3, ethers@^5.4.3:
+  version "5.4.3"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.4.3.tgz#9469e7f353285caac4114467eb2618f755a3f7d0"
+  integrity sha512-esWqdrFZObpyZyhH6VLHCz5vRA/YJrEmQO77sALWSWFjFtJr5ITIRwJ448N+mxIrvnqjZGQ2Jx2zC3xt5lc64g==
   dependencies:
     "@ethersproject/abi" "5.4.0"
     "@ethersproject/abstract-provider" "5.4.0"
-    "@ethersproject/abstract-signer" "5.4.0"
+    "@ethersproject/abstract-signer" "5.4.1"
     "@ethersproject/address" "5.4.0"
     "@ethersproject/base64" "5.4.0"
     "@ethersproject/basex" "5.4.0"
     "@ethersproject/bignumber" "5.4.1"
     "@ethersproject/bytes" "5.4.0"
     "@ethersproject/constants" "5.4.0"
-    "@ethersproject/contracts" "5.4.0"
+    "@ethersproject/contracts" "5.4.1"
     "@ethersproject/hash" "5.4.0"
     "@ethersproject/hdnode" "5.4.0"
     "@ethersproject/json-wallets" "5.4.0"
@@ -9184,7 +9195,7 @@ ethers@5.4.2, ethers@^5.4.2:
     "@ethersproject/networks" "5.4.1"
     "@ethersproject/pbkdf2" "5.4.0"
     "@ethersproject/properties" "5.4.0"
-    "@ethersproject/providers" "5.4.2"
+    "@ethersproject/providers" "5.4.3"
     "@ethersproject/random" "5.4.0"
     "@ethersproject/rlp" "5.4.0"
     "@ethersproject/sha2" "5.4.0"