diff --git a/cwriter/util_bsd.go b/cwriter/util_bsd.go
index 4e3564e..215643b 100644
--- a/cwriter/util_bsd.go
+++ b/cwriter/util_bsd.go
@@ -1,4 +1,4 @@
-// +build darwin dragonfly freebsd netbsd openbsd
+//go:build darwin || dragonfly || freebsd || netbsd || openbsd
 
 package cwriter
 
diff --git a/cwriter/util_linux.go b/cwriter/util_linux.go
index 253f12d..7d0e761 100644
--- a/cwriter/util_linux.go
+++ b/cwriter/util_linux.go
@@ -1,4 +1,4 @@
-// +build aix linux
+//go:build aix || linux
 
 package cwriter
 
diff --git a/cwriter/util_solaris.go b/cwriter/util_solaris.go
index 4b29ff5..981f574 100644
--- a/cwriter/util_solaris.go
+++ b/cwriter/util_solaris.go
@@ -1,4 +1,4 @@
-// +build solaris
+//go:build solaris
 
 package cwriter
 
diff --git a/cwriter/util_zos.go b/cwriter/util_zos.go
index b7d67fc..5daf003 100644
--- a/cwriter/util_zos.go
+++ b/cwriter/util_zos.go
@@ -1,4 +1,4 @@
-// +build zos
+//go:build zos
 
 package cwriter
 
diff --git a/cwriter/writer_posix.go b/cwriter/writer_posix.go
index f54a5d0..9d03197 100644
--- a/cwriter/writer_posix.go
+++ b/cwriter/writer_posix.go
@@ -1,4 +1,4 @@
-// +build !windows
+//go:build !windows
 
 package cwriter
 
diff --git a/cwriter/writer_windows.go b/cwriter/writer_windows.go
index 2c4c370..91fdfb3 100644
--- a/cwriter/writer_windows.go
+++ b/cwriter/writer_windows.go
@@ -1,4 +1,4 @@
-// +build windows
+//go:build windows
 
 package cwriter
 
diff --git a/go.mod b/go.mod
index 6605622..f2da4b4 100644
--- a/go.mod
+++ b/go.mod
@@ -7,4 +7,6 @@
 	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a
 )
 
-go 1.14
+require github.com/rivo/uniseg v0.2.0 // indirect
+
+go 1.17