diff --git a/package.json b/package.json
index 0b8fdacf..d6f4b233 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
   },
   "devDependencies": {
     "@nomiclabs/hardhat-ethers": "^2.0.3",
-    "@nomiclabs/hardhat-etherscan": "^3.0.3",
+    "@nomiclabs/hardhat-etherscan": "^3.1.7",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
     "@nomiclabs/hardhat-web3": "^2.0.0",
     "@openzeppelin/test-helpers": "^0.5.15",
diff --git a/yarn.lock b/yarn.lock
index ac7c568b..73081723 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -995,7 +995,7 @@
   resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-ethers/-/hardhat-ethers-2.2.3.tgz#b41053e360c31a32c2640c9a45ee981a7e603fe0"
   integrity sha512-YhzPdzb612X591FOe68q+qXVXGG2ANZRvDo0RRUtimev85rCrAlv/TLMEZw5c+kq9AbzocLTVX/h2jVIFPL9Xg==
 
-"@nomiclabs/hardhat-etherscan@^3.0.3":
+"@nomiclabs/hardhat-etherscan@^3.1.7":
   version "3.1.7"
   resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-3.1.7.tgz#72e3d5bd5d0ceb695e097a7f6f5ff6fcbf062b9a"
   integrity sha512-tZ3TvSgpvsQ6B6OGmo1/Au6u8BrAkvs1mIC/eURA3xgIfznUZBhmpne8hv7BXUzw9xNL3fXdpOYgOQlVMTcoHQ==