diff --git a/dataprovider/dataprovider.go b/dataprovider/dataprovider.go
index af27493c..702c6534 100644
--- a/dataprovider/dataprovider.go
+++ b/dataprovider/dataprovider.go
@@ -2214,26 +2214,6 @@ func executeAction(operation string, user *User) {
 	}()
 }
 
-// after migrating database to v4 we have to update the quota for the imported folders
-/*func updateVFoldersQuotaAfterRestore(foldersToScan []string) {
-	fs := vfs.NewOsFs("", "", nil).(*vfs.OsFs)
-	for _, folder := range foldersToScan {
-		providerLog(logger.LevelDebug, "starting quota scan after migration for folder %#v", folder)
-		vfolder, err := provider.getFolderByPath(folder)
-		if err != nil {
-			providerLog(logger.LevelWarn, "error getting folder to scan %#v: %v", folder, err)
-			continue
-		}
-		numFiles, size, err := fs.GetDirSize(folder)
-		if err != nil {
-			providerLog(logger.LevelWarn, "error scanning folder %#v: %v", folder, err)
-			continue
-		}
-		err = UpdateVirtualFolderQuota(vfolder, numFiles, size, true)
-		providerLog(logger.LevelDebug, "quota updated for virtual folder %#v, error: %v", vfolder.MappedPath, err)
-	}
-}*/
-
 func updateWebDavCachedUserLastLogin(username string) {
 	result, ok := webDAVUsersCache.Load(username)
 	if ok {
diff --git a/go.mod b/go.mod
index 9b0494f6..4d88d855 100644
--- a/go.mod
+++ b/go.mod
@@ -37,7 +37,7 @@ require (
 	github.com/otiai10/copy v1.4.2
 	github.com/pelletier/go-toml v1.8.1 // indirect
 	github.com/pires/go-proxyproto v0.4.2
-	github.com/pkg/sftp v1.12.1-0.20201128220914-b5b6f3393fe9
+	github.com/pkg/sftp v1.12.1-0.20210222152308-b8102da57e75
 	github.com/prometheus/client_golang v1.9.0
 	github.com/prometheus/common v0.17.0 // indirect
 	github.com/prometheus/procfs v0.6.0 // indirect
@@ -73,7 +73,6 @@ require (
 
 replace (
 	github.com/jlaffaye/ftp => github.com/drakkan/ftp v0.0.0-20201114075148-9b9adce499a9
-	github.com/pkg/sftp => github.com/drakkan/sftp v0.0.0-20210210202350-a2b46fc9c0d5
 	golang.org/x/crypto => github.com/drakkan/crypto v0.0.0-20210221212101-dc57d1956176
 	golang.org/x/net => github.com/drakkan/net v0.0.0-20210221212420-9117fa75ae3d
 )
diff --git a/go.sum b/go.sum
index b3c6809c..813c4e85 100644
--- a/go.sum
+++ b/go.sum
@@ -173,8 +173,6 @@ github.com/drakkan/ftp v0.0.0-20201114075148-9b9adce499a9 h1:LPH1dEblAOO/LoG7yHP
 github.com/drakkan/ftp v0.0.0-20201114075148-9b9adce499a9/go.mod h1:2lmrmq866uF2tnje75wQHzmPXhmSWUt7Gyx2vgK1RCU=
 github.com/drakkan/net v0.0.0-20210221212420-9117fa75ae3d h1:VUM47Q+HId0s2Kr6Cx/Iej3V3JQHxw/C9FzMRlaicDc=
 github.com/drakkan/net v0.0.0-20210221212420-9117fa75ae3d/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-github.com/drakkan/sftp v0.0.0-20210210202350-a2b46fc9c0d5 h1:jVxjoPrGY9Ypw65tTHRdDvumOE3ys2fLZfvFT6+gFPU=
-github.com/drakkan/sftp v0.0.0-20210210202350-a2b46fc9c0d5/go.mod h1:fUqqXB5vEgVCZ131L+9say31RAri6aF6KDViawhxKK8=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
 github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
@@ -569,6 +567,9 @@ github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/profile v1.2.1/go.mod h1:hJw3o1OdXxsrSjjVksARp5W95eeEaEfptyVZyv6JUPA=
+github.com/pkg/sftp v1.10.1/go.mod h1:lYOWFsE0bwd1+KfKJaKeuokY15vzFx25BLbzYYoAxZI=
+github.com/pkg/sftp v1.12.1-0.20210222152308-b8102da57e75 h1:M1mYcYovX5NYD+nZSSqligrmYg3lsiMBS0DycBpDjXY=
+github.com/pkg/sftp v1.12.1-0.20210222152308-b8102da57e75/go.mod h1:41g+FIPlQUTDCveupEmEA65IoiQFrtgCeDopC4ajGIM=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndrE9hABlRI=