diff --git a/app/upgrades/v10/upgrades.go b/app/upgrades/v10/upgrades.go
index 98539c0e..6fea534d 100644
--- a/app/upgrades/v10/upgrades.go
+++ b/app/upgrades/v10/upgrades.go
@@ -16,8 +16,11 @@ func CreateV10UpgradeHandler(
 	keepers *keepers.AppKeepers,
 ) upgradetypes.UpgradeHandler {
 	return func(ctx sdk.Context, _ upgradetypes.Plan, fromVM module.VersionMap) (module.VersionMap, error) {
-		// set default oracle split
 		keepers.TreasuryKeeper.SetTaxRate(ctx, sdk.ZeroDec())
+		params := keepers.TreasuryKeeper.GetParams(ctx)
+		params.TaxPolicy.RateMax = sdk.ZeroDec()
+		params.TaxPolicy.RateMin = sdk.ZeroDec()
+		keepers.TreasuryKeeper.SetParams(ctx, params)
 
 		tax2gasParams := taxtypes.DefaultParams()
 		keepers.TaxKeeper.SetParams(ctx, tax2gasParams)