diff --git a/go.mod b/go.mod
index e1b4655d..c9884de9 100644
--- a/go.mod
+++ b/go.mod
@@ -20,7 +20,7 @@ require (
 	github.com/cockroachdb/cockroach-go/v2 v2.2.16
 	github.com/coreos/go-oidc/v3 v3.4.0
 	github.com/eikenb/pipeat v0.0.0-20210730190139-06b3e6902001
-	github.com/fclairamb/ftpserverlib v0.20.0
+	github.com/fclairamb/ftpserverlib v0.20.1-0.20221012093027-95be4ae0c9a6
 	github.com/fclairamb/go-log v0.4.1
 	github.com/go-acme/lego/v4 v4.9.0
 	github.com/go-chi/chi/v5 v5.0.8-0.20220512131524-9e71a0d4b3d6
diff --git a/go.sum b/go.sum
index 65a599f6..7db678e7 100644
--- a/go.sum
+++ b/go.sum
@@ -577,8 +577,8 @@ github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL
 github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
 github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
 github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
-github.com/fclairamb/ftpserverlib v0.20.0 h1:9NjQPxo3T0XQCyzSXZJ0XBH4mk4Qv4Lpw3GNVabvnpU=
-github.com/fclairamb/ftpserverlib v0.20.0/go.mod h1:7pR5Ckeygw3T006z1ND6HYSbJz+fTvkFAXlF6snW4yI=
+github.com/fclairamb/ftpserverlib v0.20.1-0.20221012093027-95be4ae0c9a6 h1:rnwZJ/8Y6yX9ZxsWy+9kyvUWPgc66HGr2Kyumb4Uvs0=
+github.com/fclairamb/ftpserverlib v0.20.1-0.20221012093027-95be4ae0c9a6/go.mod h1:VN4BIwbu4XeC2cyPFtuVDwXtpoDtsr+5+doTuOfdXKY=
 github.com/fclairamb/go-log v0.4.1 h1:rLtdSG9x2pK41AIAnE8WYpl05xBJfw1ZyYxZaXFcBsM=
 github.com/fclairamb/go-log v0.4.1/go.mod h1:sw1KvnkZ4wKCYkvy4SL3qVZcJSWFP8Ure4pM3z+KNn4=
 github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
diff --git a/internal/ftpd/ftpd_test.go b/internal/ftpd/ftpd_test.go
index 6cc2307a..0e94fe2d 100644
--- a/internal/ftpd/ftpd_test.go
+++ b/internal/ftpd/ftpd_test.go
@@ -2062,6 +2062,23 @@ func TestResume(t *testing.T) {
 				expected := append(data, data...)
 				assert.Equal(t, expected, readed)
 			}
+			// append to a new file
+			srcFile, err = os.Open(testFilePath)
+			if assert.NoError(t, err) {
+				newFileName := testFileName + "_new"
+				err = client.Append(newFileName, srcFile)
+				assert.NoError(t, err)
+				err = srcFile.Close()
+				assert.NoError(t, err)
+				size, err := client.FileSize(newFileName)
+				assert.NoError(t, err)
+				assert.Equal(t, int64(len(data)), size)
+				err = ftpDownloadFile(newFileName, localDownloadPath, int64(len(data)), client, 0)
+				assert.NoError(t, err)
+				readed, err = os.ReadFile(localDownloadPath)
+				assert.NoError(t, err)
+				assert.Equal(t, data, readed)
+			}
 			err = client.Quit()
 			assert.NoError(t, err)
 			err = os.Remove(testFilePath)