diff --git a/src/auction.test.ts b/src/auction.test.ts
index 2f31b1b..66efab4 100644
--- a/src/auction.test.ts
+++ b/src/auction.test.ts
@@ -67,10 +67,13 @@ const auctionTests = () => {
   test('Commit bids.', async () => {
     for (let i = 0; i < numBidders; i++) {
       bidAmounts.push((LOWEST_BID_AMOUNT + (i * 500)).toString());
-      bidderAccounts[i].bid = await createBid(chainId, auctionId, bidderAccounts[i].address, `${bidAmounts[i]}${DENOM}`);
-      await registry.commitBid({ auctionId, commitHash: bidderAccounts[i].bid.commitHash }, bidderAccounts[i].privateKey, fee);
     }
 
+    await Promise.all(bidderAccounts.map(async (bidderAccount, i) => {
+      bidderAccounts[i].bid = await createBid(chainId, auctionId, bidderAccount.address, `${bidAmounts[i]}${DENOM}`);
+      return registry.commitBid({ auctionId, commitHash: bidderAccount.bid.commitHash }, bidderAccount.privateKey, fee);
+    }));
+
     const [auction] = await registry.getAuctionsByIds([auctionId]);
     expect(auction.status).toEqual('commit');
     expect(auction.bids.length).toEqual(3);
@@ -90,9 +93,9 @@ const auctionTests = () => {
     const [auction] = await registry.getAuctionsByIds([auctionId]);
     expect(auction.status).toEqual('reveal');
 
-    for (let i = 0; i < numBidders; i++) {
-      await registry.revealBid({ auctionId, reveal: bidderAccounts[i].bid.revealString }, bidderAccounts[i].privateKey, fee);
-    }
+    await Promise.all(bidderAccounts.map(async bidderAccount => {
+      return registry.revealBid({ auctionId, reveal: bidderAccount.bid.revealString }, bidderAccount.privateKey, fee);
+    }));
   });
 
   test('Check bids are revealed', async () => {
@@ -175,7 +178,7 @@ const providerAuctionTestsWithBids = (bidAmounts: number[], numProviders: number
     const otherAcc = await Account.generateFromMnemonic(mnenonic3);
     await otherAcc.init();
 
-    await registry.sendCoins({ denom: DENOM, amount: CREATOR_INITIAL_BALANCE.toString(), destinationAddress: otherAcc.address }, privateKey, fee);
+    await registry.sendCoins({ denom: DENOM, amount: BIDDER_INITIAL_BALANCE.toString(), destinationAddress: otherAcc.address }, privateKey, fee);
     otherAccount = { address: otherAcc.address, privateKey: otherAcc.privateKey.toString('hex') };
   });
 
@@ -205,10 +208,10 @@ const providerAuctionTestsWithBids = (bidAmounts: number[], numProviders: number
   });
 
   test('Commit bids.', async () => {
-    for (let i = 0; i < numBidders; i++) {
-      bidderAccounts[i].bid = await createBid(chainId, auctionId, bidderAccounts[i].address, `${bidAmounts[i]}${DENOM}`);
-      await registry.commitBid({ auctionId, commitHash: bidderAccounts[i].bid.commitHash }, bidderAccounts[i].privateKey, fee);
-    }
+    await Promise.all(bidderAccounts.map(async (bidderAccount, i) => {
+      bidderAccounts[i].bid = await createBid(chainId, auctionId, bidderAccount.address, `${bidAmounts[i]}${DENOM}`);
+      return registry.commitBid({ auctionId, commitHash: bidderAccount.bid.commitHash }, bidderAccount.privateKey, fee);
+    }));
 
     sortedBidders = bidderAccounts.slice().sort((a, b) => {
       return parseInt(a.bid.reveal.bidAmount) - parseInt(b.bid.reveal.bidAmount);
@@ -239,21 +242,21 @@ const providerAuctionTestsWithBids = (bidAmounts: number[], numProviders: number
     const [auction] = await registry.getAuctionsByIds([auctionId]);
     expect(auction.status).toEqual('reveal');
 
-    for (let i = 0; i < numBidders; i++) {
+    await Promise.all(bidderAccounts.map(async bidderAccount => {
       try {
         await registry.revealBid(
-          { auctionId, reveal: bidderAccounts[i].bid.revealString },
-          bidderAccounts[i].privateKey,
+          { auctionId, reveal: bidderAccount.bid.revealString },
+          bidderAccount.privateKey,
           fee
         );
       } catch (error: any) {
-        if (invalidBidderAddress === bidderAccounts[i].address) {
+        if (bidderAccount.address === invalidBidderAddress) {
           expect(error.toString()).toContain(INVALID_BID_ERROR);
         } else {
           throw error;
         }
       }
-    }
+    }));
   });
 
   test('Check bids are revealed', async () => {