diff --git a/package.json b/package.json
index 476ae1f1..08c5d7e2 100644
--- a/package.json
+++ b/package.json
@@ -79,13 +79,14 @@
     "eslint-plugin-promise": "^6.1.1",
     "eth-gas-reporter": "^0.2.27",
     "eth-helpers": "^1.3.0",
-    "hardhat": "^2.19.5",
+    "hardhat": "^2.22.2",
     "nanoassert": "^2.0.0",
     "sha3-wasm": "^1.0.0",
     "solhint": "^4.1.1",
     "truffle": "^5.11.5",
     "truffle-assertions": "^0.9.2",
     "truffle-flattener": "^1.6.0",
+    "witnet-toolkit": "^2.0.1",
     "truffle-plugin-verify": "^0.6.7"
   }
 }