diff --git a/client/api_bucket.go b/client/api_bucket.go
index f4991b87..08b9c0bd 100644
--- a/client/api_bucket.go
+++ b/client/api_bucket.go
@@ -175,7 +175,7 @@ func (c *Client) CreateBucket(ctx context.Context, bucketName string, primaryAdd
 		return "", err
 	}
 
-	familyID, err := c.QuerySpOptimalGlobalVirtualGroupFamily(ctx, sp.Id, virtualgroupTypes.Strategy_Maximize_Free_Store_Size)
+	familyID, err := c.QuerySpOptimalGlobalVirtualGroupFamily(ctx, sp.Id, virtualgroupTypes.Strategy_Oldest_Create_Time)
 	if err != nil {
 		log.Error().Msg(fmt.Sprintf("failed to query sp ptimal vgf:  %s", err.Error()))
 		var signedMsg *storageTypes.MsgCreateBucket
diff --git a/client/api_virtual_group.go b/client/api_virtual_group.go
index ad70d3e3..e50eda5e 100644
--- a/client/api_virtual_group.go
+++ b/client/api_virtual_group.go
@@ -69,7 +69,8 @@ func (c *Client) QuerySpAvailableGlobalVirtualGroupFamilies(ctx context.Context,
 // - ret2: Return error when the request failed, otherwise return nil.
 func (c *Client) QuerySpOptimalGlobalVirtualGroupFamily(ctx context.Context, spID uint32, strategy types.PickVGFStrategy) (uint32, error) {
 	queryResponse, err := c.chainClient.QuerySpOptimalGlobalVirtualGroupFamily(ctx, &types.QuerySpOptimalGlobalVirtualGroupFamilyRequest{
-		SpId: spID,
+		SpId:            spID,
+		PickVgfStrategy: strategy,
 	})
 	if err != nil {
 		return 0, err
diff --git a/go.mod b/go.mod
index 01d1e78e..41359403 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.20
 require (
 	cosmossdk.io/errors v1.0.0-beta.7
 	cosmossdk.io/math v1.0.1
-	github.com/bnb-chain/greenfield v1.6.0
+	github.com/bnb-chain/greenfield v1.6.1
 	github.com/bnb-chain/greenfield-common/go v0.0.0-20240410092538-5e3891943cbb
 	github.com/cometbft/cometbft v0.37.2
 	github.com/consensys/gnark-crypto v0.7.0
diff --git a/go.sum b/go.sum
index cff16894..1f7e0dee 100644
--- a/go.sum
+++ b/go.sum
@@ -152,8 +152,8 @@ github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kB
 github.com/bgentry/speakeasy v0.1.1-0.20220910012023-760eaf8b6816 h1:41iFGWnSlI2gVpmOtVTJZNodLdLQLn/KsJqFvXwnd/s=
 github.com/bgentry/speakeasy v0.1.1-0.20220910012023-760eaf8b6816/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
 github.com/bmizerany/pat v0.0.0-20170815010413-6226ea591a40/go.mod h1:8rLXio+WjiTceGBHIoTvn60HIbs7Hm7bcHjyrSqYB9c=
-github.com/bnb-chain/greenfield v1.6.0 h1:AAEJjtwED6XVckPRqMSa6nUciEeBNszeJhNiO/2KNiE=
-github.com/bnb-chain/greenfield v1.6.0/go.mod h1:KCjy1bsc5q2G4IjyhKX0r3BQM+4rooZ1/fNnGlq8o3I=
+github.com/bnb-chain/greenfield v1.6.1 h1:4MqLVBwv8igCE9EipVS2AUbl+JzljLCg1tA28nfmm6g=
+github.com/bnb-chain/greenfield v1.6.1/go.mod h1:KCjy1bsc5q2G4IjyhKX0r3BQM+4rooZ1/fNnGlq8o3I=
 github.com/bnb-chain/greenfield-cometbft v1.2.0 h1:LTStppZS9WkVj0TfEYKkk5OAQDGfYlUefWByr7Zr018=
 github.com/bnb-chain/greenfield-cometbft v1.2.0/go.mod h1:WVOEZ59UYM2XePQH47/IQfcInspDn8wbRXhFSJrbU1c=
 github.com/bnb-chain/greenfield-cometbft-db v0.8.1-alpha.1 h1:XcWulGacHVRiSCx90Q8Y//ajOrLNBQWR/KDB89dy3cU=