diff --git a/test/feralfile_exhibition_v4_2.js b/test/feralfile_exhibition_v4_2.js
index 675ba22..698fa36 100644
--- a/test/feralfile_exhibition_v4_2.js
+++ b/test/feralfile_exhibition_v4_2.js
@@ -1,5 +1,5 @@
 const FeralfileExhibitionV4_2 = artifacts.require("FeralfileExhibitionV4_2");
-const FeralfileVault = artifacts.require("FeralfileVault");
+const FeralfileVault = artifacts.require("FeralfileVaultV2");
 
 const ZERO_ADDRESS = "0x0000000000000000000000000000000000000000";
 const COST_RECEIVER = "0x46f2B641d8702f29c45f6D06292dC34Eb9dB1801";
@@ -595,7 +595,7 @@ contract("FeralfileExhibitionV4_2", async (accounts) => {
     });
 
     it("should buy bulk artworks successfully", async function () {
-        const contract = this.contract[3];
+        const contract = this.contracts[3];
 
         // Mint artworks to the contract
         const owner = contract.address;
@@ -688,7 +688,7 @@ contract("FeralfileExhibitionV4_2", async (accounts) => {
     });
 
     it("should fail to buy bulk artworks with invalid signature", async function () {
-        const contract = this.contract[10];
+        const contract = this.contracts[10];
 
         // Mint artworks to the contract
         const owner = contract.address;
@@ -753,7 +753,7 @@ contract("FeralfileExhibitionV4_2", async (accounts) => {
     });
 
     it("should fail to buy bulk artworks with incorrect payment", async function () {
-        const contract = this.contract[11];
+        const contract = this.contracts[11];
 
         // Mint artworks to the contract
         const owner = contract.address;
@@ -818,7 +818,7 @@ contract("FeralfileExhibitionV4_2", async (accounts) => {
     });
 
     it("should fail to buy bulk artworks with invalid series ID", async function () {
-        const contract = this.contract;
+        const contract = this.contracts[2];
 
         // Mint artworks to the contract
         const owner = contract.address;