diff --git a/packages/base-contract/package.json b/packages/base-contract/package.json
index 12cf35f607..3b0aec832c 100644
--- a/packages/base-contract/package.json
+++ b/packages/base-contract/package.json
@@ -53,7 +53,7 @@
         "ethereumjs-blockstream": "^7.0.0",
         "ethereumjs-util": "^5.1.1",
         "ethereumjs-vm": "^4.0.0",
-        "ethers": "~4.0.4",
+        "ethers": "~5.0.0",
         "js-sha3": "^0.7.0",
         "uuid": "^3.3.2"
     },