diff --git a/app/upgrades.go b/app/upgrades.go
index 81ddbb512d..37c536c5ad 100644
--- a/app/upgrades.go
+++ b/app/upgrades.go
@@ -59,7 +59,7 @@ func (app UmeeApp) RegisterUpgradeHandlers() {
 }
 
 func (app *UmeeApp) registerUpgrade6_6RC1(upgradeInfo upgradetypes.Plan) {
-	planName := "v6.6-rc1"
+	planName := "v6.6"
 
 	app.UpgradeKeeper.SetUpgradeHandler(planName,
 		func(ctx sdk.Context, _ upgradetypes.Plan, fromVM module.VersionMap) (module.VersionMap, error) {
@@ -67,16 +67,14 @@ func (app *UmeeApp) registerUpgrade6_6RC1(upgradeInfo upgradetypes.Plan) {
 
 			// update leverage and metoken params to include burn auction fee share.
 			lparams := app.LeverageKeeper.GetParams(ctx)
-			// TODO: need to check the reward auction fee params value for v6.6
-			lparams.RewardsAuctionFee = sdk.MustNewDecFromStr("0.01")
+			lparams.RewardsAuctionFee = sdk.MustNewDecFromStr("0.02")
 			if err := app.LeverageKeeper.SetParams(ctx, lparams); err != nil {
 				return nil, err
 			}
 
 			mekeeper := app.MetokenKeeperB.Keeper(&ctx)
 			meparams := mekeeper.GetParams()
-			// TODO: need to check the Rewards Auction Fee Factor params value for v6.6
-			meparams.RewardsAuctionFeeFactor = 10000 // 100% of fees goes to rewards auction
+			meparams.RewardsAuctionFeeFactor = 1000 // 10% of fees goes to rewards auction
 			if err := mekeeper.SetParams(meparams); err != nil {
 				return nil, err
 			}
diff --git a/x/auction/genesis.go b/x/auction/genesis.go
index 8157cb9bf3..867993839e 100644
--- a/x/auction/genesis.go
+++ b/x/auction/genesis.go
@@ -10,9 +10,7 @@ import (
 // DefaultGenesis creates a default genesis state
 func DefaultGenesis() *GenesisState {
 	return &GenesisState{
-		// check bid duration value for v6.6 upgrade
-		// RewardsParams:   RewardsParams{BidDuration: 14 * 24 * 3600}, // 14 days
-		RewardsParams:   RewardsParams{BidDuration: 4 * 3600}, //  4 hours for bid duration this is only for canon-4 network
+		RewardsParams:   RewardsParams{BidDuration: 14 * 24 * 3600}, // 14 days
 		RewardAuctionId: 0,
 		RewardsAuctions: []RewardsKV{},
 		RewardsBids:     []BidKV{},
diff --git a/x/auction/msgs.go b/x/auction/msgs.go
index 6a06d3d928..ed08668da6 100644
--- a/x/auction/msgs.go
+++ b/x/auction/msgs.go
@@ -19,7 +19,6 @@ const minBidDuration = 3600 // 1h in seconds
 
 // MinRewardsBid is the minimum increase of the previous bid or the minimum bid if it's the
 // first one. 50 UX = 50e6uumee
-// TODO: need to check the value for v6.6 upgrade
 var MinRewardsBid = sdk.NewInt(50_000_000)
 
 //