diff --git a/go.mod b/go.mod
index 9d53b76..428269d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,16 +3,17 @@ module git.metabarcoding.org/lecasofts/go/obitools
 go 1.17
 
 require (
-	github.com/DavidGamba/go-getoptions v0.25.0
-	github.com/goccy/go-json v0.9.2
-	github.com/schollz/progressbar/v3 v3.8.5
+	github.com/DavidGamba/go-getoptions v0.25.3
+	github.com/goccy/go-json v0.9.4
+	github.com/renproject/surge v1.2.7
+	github.com/schollz/progressbar/v3 v3.8.6
 )
 
 require (
 	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
-	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce // indirect
-	golang.org/x/sys v0.0.0-20220111092808-5a964db01320 // indirect
+	golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838 // indirect
+	golang.org/x/sys v0.0.0-20220204135822-1c1b9b1eba6a // indirect
 	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 )