diff --git a/go.mod b/go.mod
index 3a499beef..52c59ec9f 100644
--- a/go.mod
+++ b/go.mod
@@ -42,7 +42,7 @@ require (
 	github.com/xrash/smetrics v0.0.0-20170218160415-a3153f7040e9
 	github.com/zach-klippenstein/goregen v0.0.0-20160303162051-795b5e3961ea // indirect
 	go.bug.st/downloader v0.0.0-20181116113543-9b8976a44d87
-	go.bug.st/serial v1.1.1
+	go.bug.st/serial v1.1.2
 	goa.design/goa v1.0.1-0.20190116060309-40843d63b0e4
 	golang.org/x/crypto v0.0.0-20201124201722-c8d3bf9c5392
 	golang.org/x/sys v0.0.0-20201202213521-69691e467435
diff --git a/go.sum b/go.sum
index 7df4c6adf..855b81737 100644
--- a/go.sum
+++ b/go.sum
@@ -187,6 +187,7 @@ go.bug.st/downloader v0.0.0-20181116113543-9b8976a44d87 h1:8W/hwyrc25HrXxbtG8Ghi
 go.bug.st/downloader v0.0.0-20181116113543-9b8976a44d87/go.mod h1:OUL7bexo6Ir+BRE5E7Cs3qUvO6ZgJL5Hjk/qwiy6Ze0=
 go.bug.st/serial v1.1.1 h1:5J1DpaIaSIruBi7jVnKXnhRS+YQ9+2PLJMtIZKoIgnc=
 go.bug.st/serial v1.1.1/go.mod h1:VmYBeyJWp5BnJ0tw2NUJHZdJTGl2ecBGABHlzRK1knY=
+go.bug.st/serial v1.1.2/go.mod h1:VmYBeyJWp5BnJ0tw2NUJHZdJTGl2ecBGABHlzRK1knY=
 goa.design/goa v1.0.1-0.20190116060309-40843d63b0e4 h1:+qjyw15FIXxmcA/QmrDrofQPLMAav6X2v+UYH/pQq8A=
 goa.design/goa v1.0.1-0.20190116060309-40843d63b0e4/go.mod h1:NnzBwdNktihbNek+pPiFMQP9PPFsUt8MMPPyo9opDSo=
 golang.org/x/crypto v0.0.0-20180214000028-650f4a345ab4/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=