diff --git a/deployments/Base.json b/deployments/Base.json
index def45ff2..61e97c71 100644
--- a/deployments/Base.json
+++ b/deployments/Base.json
@@ -14,5 +14,12 @@
         "EngineProxy": "0xa5D8b733108D798d8faAf78eE1CaF9fE335cE233",
         "MulticallerWithSender": "0xabcA02D1B960399D7D65EBF4047E80391af5d6A2",
         "Zap": "0x64b6Ae998Fbba6d24dD7a2469842119A014835CD"
+    },
+    "Multi Collateral": {
+        "Zap": "0x84f531d85fAA7Be42f8a248B87e40f760e558F7C",
+        "Pay": "0x127Fb7602bF3De092d351f922791cF9a149A4837",
+        "EngineImplementation": "0xFb7747a95B23a1512E8b8dda828E48E91b790e56",
+        "EngineProxy": "0xC4d15a1726CF9B51E1591eac6D1576016064DCe0",
+        "MulticallerWithSender": "0x7E1cec3d06B45d84263d954A0E2bc6A8683E1351"
     }
 }
\ No newline at end of file
diff --git a/src/utils/MulticallerWithSender.sol b/src/utils/MulticallerWithSender.sol
index eb29f441..9b842cd3 100644
--- a/src/utils/MulticallerWithSender.sol
+++ b/src/utils/MulticallerWithSender.sol
@@ -116,7 +116,7 @@ contract MulticallerWithSender {
                 if iszero(
                     call(
                         gas(), // Remaining gas.
-                        0xa5D8b733108D798d8faAf78eE1CaF9fE335cE233, // Engine Proxy address.
+                        0xC4d15a1726CF9B51E1591eac6D1576016064DCe0, // Engine Proxy address.
                         calldataload(values.offset), // ETH to send.
                         memPtr, // Start of input calldata in memory.
                         calldataload(o), // Size of input calldata.
diff --git a/test/MulticallerWithSender.t.sol b/test/MulticallerWithSender.t.sol
index 813df8f9..16d704e3 100644
--- a/test/MulticallerWithSender.t.sol
+++ b/test/MulticallerWithSender.t.sol
@@ -11,12 +11,13 @@ contract MulticallerWithSenderTest is Bootstrap {
     MWS mws;
     EIP7412Mock eip7412Mock;
     address constant DEPLOYED_ENGINE =
-        0x480381d10Ffb87359364308f2b160d06532e3a01;
+        0xC4d15a1726CF9B51E1591eac6D1576016064DCe0;
     address payable constant DEPLOYED_MWS =
-        payable(0xFCf78b0583c712a6B7ea6280e3aD72E508dA3a80);
+        payable(0x7E1cec3d06B45d84263d954A0E2bc6A8683E1351);
+    uint256 constant BASE_BLOCK_NUMBER_AFTER_DEPLOYMENT = 23_712_358;
 
     function setUp() public {
-        vm.rollFork(BASE_BLOCK_NUMBER);
+        vm.rollFork(BASE_BLOCK_NUMBER_AFTER_DEPLOYMENT);
         initializeBase();
 
         mws = MWS(DEPLOYED_MWS);