diff --git a/go.mod b/go.mod
index 5a5a68c8..b40a9910 100644
--- a/go.mod
+++ b/go.mod
@@ -173,18 +173,18 @@ require (
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/tools v0.20.0 // indirect
 	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
-	google.golang.org/genproto v0.0.0-20240415180920-8c6c420018be // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240415180920-8c6c420018be // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240415180920-8c6c420018be // indirect
+	google.golang.org/genproto v0.0.0-20240429193739-8cf5692501f6 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240429193739-8cf5692501f6 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240429193739-8cf5692501f6 // indirect
 	google.golang.org/grpc v1.63.2 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
+	google.golang.org/protobuf v1.34.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
 replace (
-	github.com/fclairamb/ftpserverlib => github.com/drakkan/ftpserverlib v0.0.0-20240313174824-cf52df3aa8f7
-	github.com/jlaffaye/ftp => github.com/drakkan/ftp v0.0.0-20240210102745-f1ffc43f78d2
+	github.com/fclairamb/ftpserverlib => github.com/drakkan/ftpserverlib v0.0.0-20240430171908-06190249a088
+	github.com/jlaffaye/ftp => github.com/drakkan/ftp v0.0.0-20240430173938-7ba8270c8e7f
 	github.com/robfig/cron/v3 => github.com/drakkan/cron/v3 v3.0.0-20230222140221-217a1e4d96c0
 	golang.org/x/crypto => github.com/drakkan/crypto v0.0.0-20240405104909-a6b14455cac6
 )
diff --git a/go.sum b/go.sum
index bf640401..717f6067 100644
--- a/go.sum
+++ b/go.sum
@@ -116,10 +116,10 @@ github.com/drakkan/cron/v3 v3.0.0-20230222140221-217a1e4d96c0 h1:EW9gIJRmt9lzk66
 github.com/drakkan/cron/v3 v3.0.0-20230222140221-217a1e4d96c0/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
 github.com/drakkan/crypto v0.0.0-20240405104909-a6b14455cac6 h1:XzaQu+jRDZWu+CroSbYeNj87kvU73lTEUNbUZt1xjAo=
 github.com/drakkan/crypto v0.0.0-20240405104909-a6b14455cac6/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
-github.com/drakkan/ftp v0.0.0-20240210102745-f1ffc43f78d2 h1:ufiGMPFBjndWSQOst9FNP11IuMqPblI2NXbpRMUWNhk=
-github.com/drakkan/ftp v0.0.0-20240210102745-f1ffc43f78d2/go.mod h1:4p8lUl4vQ80L598CygL+3IFtm+3nggvvW/palOlViwE=
-github.com/drakkan/ftpserverlib v0.0.0-20240313174824-cf52df3aa8f7 h1:E6WwhQsovE0dh/QzYx3HQLQvgMoPbmrhrrjYuV9kng8=
-github.com/drakkan/ftpserverlib v0.0.0-20240313174824-cf52df3aa8f7/go.mod h1:+9afJRWESpCq4/O8Vr00Q2jfinRxP6PiCpXph6CgGuc=
+github.com/drakkan/ftp v0.0.0-20240430173938-7ba8270c8e7f h1:S9JUlrOzjK58UKoLqqb40YLyVlt0bcIFtYrvnanV3zc=
+github.com/drakkan/ftp v0.0.0-20240430173938-7ba8270c8e7f/go.mod h1:4p8lUl4vQ80L598CygL+3IFtm+3nggvvW/palOlViwE=
+github.com/drakkan/ftpserverlib v0.0.0-20240430171908-06190249a088 h1:M7X8bstrPumVbmxdtHxQMJghiYhFzk/y+LvmWJkihqw=
+github.com/drakkan/ftpserverlib v0.0.0-20240430171908-06190249a088/go.mod h1:+9afJRWESpCq4/O8Vr00Q2jfinRxP6PiCpXph6CgGuc=
 github.com/drakkan/webdav v0.0.0-20240414072657-7c19d3cb5103 h1:jhcR8ixhpd3f8iBeH/6pJ9V3BNjY3Yjrb7Ipp8Cezmw=
 github.com/drakkan/webdav v0.0.0-20240414072657-7c19d3cb5103/go.mod h1:zOVb1QDhwwqWn2L2qZ0U3swMSO4GTSNyIwXCGO/UGWE=
 github.com/eikenb/pipeat v0.0.0-20210730190139-06b3e6902001 h1:/ZshrfQzayqRSBDodmp3rhNCHJCff+utvgBuWRbiqu4=
@@ -519,12 +519,12 @@ google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-google.golang.org/genproto v0.0.0-20240415180920-8c6c420018be h1:g4aX8SUFA8V5F4LrSY5EclyGYw1OZN4HS1jTyjB9ZDc=
-google.golang.org/genproto v0.0.0-20240415180920-8c6c420018be/go.mod h1:FeSdT5fk+lkxatqJP38MsUicGqHax5cLtmy/6TAuxO4=
-google.golang.org/genproto/googleapis/api v0.0.0-20240415180920-8c6c420018be h1:Zz7rLWqp0ApfsR/l7+zSHhY3PMiH2xqgxlfYfAfNpoU=
-google.golang.org/genproto/googleapis/api v0.0.0-20240415180920-8c6c420018be/go.mod h1:dvdCTIoAGbkWbcIKBniID56/7XHTt6WfxXNMxuziJ+w=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240415180920-8c6c420018be h1:LG9vZxsWGOmUKieR8wPAUR3u3MpnYFQZROPIMaXh7/A=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240415180920-8c6c420018be/go.mod h1:WtryC6hu0hhx87FDGxWCDptyssuo68sk10vYjF+T9fY=
+google.golang.org/genproto v0.0.0-20240429193739-8cf5692501f6 h1:MTmrc2F5TZKDKXigcZetYkH04YwqtOPEQJwh4PPOgfk=
+google.golang.org/genproto v0.0.0-20240429193739-8cf5692501f6/go.mod h1:2ROWwqCIx97Y7CSyp11xB8fori0wzvD6+gbacaf5c8I=
+google.golang.org/genproto/googleapis/api v0.0.0-20240429193739-8cf5692501f6 h1:DTJM0R8LECCgFeUwApvcEJHz85HLagW8uRENYxHh1ww=
+google.golang.org/genproto/googleapis/api v0.0.0-20240429193739-8cf5692501f6/go.mod h1:10yRODfgim2/T8csjQsMPgZOMvtytXKTDRzH6HRGzRw=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240429193739-8cf5692501f6 h1:DujSIu+2tC9Ht0aPNA7jgj23Iq8Ewi5sgkQ++wdvonE=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240429193739-8cf5692501f6/go.mod h1:WtryC6hu0hhx87FDGxWCDptyssuo68sk10vYjF+T9fY=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
@@ -541,8 +541,8 @@ google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
-google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
-google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/protobuf v1.34.0 h1:Qo/qEd2RZPCf2nKuorzksSknv0d3ERwp1vFG38gSmH4=
+google.golang.org/protobuf v1.34.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
diff --git a/internal/ftpd/ftpd_test.go b/internal/ftpd/ftpd_test.go
index 70e9d543..d59d0c3d 100644
--- a/internal/ftpd/ftpd_test.go
+++ b/internal/ftpd/ftpd_test.go
@@ -3081,6 +3081,37 @@ func TestChtimes(t *testing.T) {
 	assert.NoError(t, err)
 }
 
+func TestMODEType(t *testing.T) {
+	user, _, err := httpdtest.AddUser(getTestUser(), http.StatusCreated)
+	assert.NoError(t, err)
+	client, err := getFTPClient(user, false, nil)
+	if assert.NoError(t, err) {
+		code, response, err := client.SendCommand("MODE s")
+		assert.NoError(t, err)
+		assert.Equal(t, ftp.StatusCommandOK, code)
+		assert.Equal(t, "Transfer mode set to 'S'", response)
+		code, response, err = client.SendCommand("MODE S")
+		assert.NoError(t, err)
+		assert.Equal(t, ftp.StatusCommandOK, code)
+		assert.Equal(t, "Transfer mode set to 'S'", response)
+
+		code, _, err = client.SendCommand("MODE Z")
+		assert.NoError(t, err)
+		assert.Equal(t, ftp.StatusNotImplementedParameter, code)
+
+		code, _, err = client.SendCommand("MODE SS")
+		assert.NoError(t, err)
+		assert.Equal(t, ftp.StatusBadArguments, code)
+
+		err = client.Quit()
+		assert.NoError(t, err)
+	}
+	_, err = httpdtest.RemoveUser(user, http.StatusOK)
+	assert.NoError(t, err)
+	err = os.RemoveAll(user.GetHomeDir())
+	assert.NoError(t, err)
+}
+
 func TestSTAT(t *testing.T) {
 	user, _, err := httpdtest.AddUser(getTestUser(), http.StatusCreated)
 	assert.NoError(t, err)