diff --git a/package.json b/package.json
index 470961ce..754b0951 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "@openzeppelin/test-helpers": "0.5.6",
     "@openzeppelin/upgrades": "2.8.0",
     "bignumber.js": "9.0.1",
-    "ethereum-waffle": "2.5.1",
+    "ethereum-waffle": "4.0.10",
     "ethereumjs-util": "7.0.6",
     "hardlydifficult-eth": "1.1.3",
     "hardlydifficult-ethereum-contracts": "0.11.1",