diff --git a/hardhat/common-contracts.js b/hardhat/common-contracts.js
index d9a3bd25295..33248ec9183 100644
--- a/hardhat/common-contracts.js
+++ b/hardhat/common-contracts.js
@@ -6,6 +6,7 @@ const fs = require('fs');
 const path = require('path');
 
 const INSTANCES = {
+  // Entrypoint v0.7.0
   entrypoint: {
     address: '0x0000000071727De22E5E9d8BAf0edAc6f37da032',
     abi: JSON.parse(fs.readFileSync(path.resolve(__dirname, '../test/bin/EntryPoint070.abi'), 'utf-8')),
@@ -16,6 +17,20 @@ const INSTANCES = {
     abi: JSON.parse(fs.readFileSync(path.resolve(__dirname, '../test/bin/SenderCreator070.abi'), 'utf-8')),
     bytecode: fs.readFileSync(path.resolve(__dirname, '../test/bin/SenderCreator070.bytecode'), 'hex'),
   },
+  // Arachnid's deterministic deployment proxy
+  // See: https://github.com/Arachnid/deterministic-deployment-proxy/tree/master
+  arachnidDeployer: {
+    address: '0x4e59b44847b379578588920cA78FbF26c0B4956C',
+    abi: [],
+    bytecode:
+      '0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe03601600081602082378035828234f58015156039578182fd5b8082525050506014600cf3',
+  },
+  // Micah's deployer
+  micahDeployer: {
+    address: '0x7A0D94F55792C434d74a40883C6ed8545E406D12',
+    abi: [],
+    bytecode: '0x60003681823780368234f58015156014578182fd5b80825250506014600cf3',
+  },
 };
 
 task(TASK_TEST_SETUP_TEST_ENVIRONMENT).setAction((_, env, runSuper) =>