diff --git a/go.mod b/go.mod
index 364c337..285251a 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,6 @@ module tshaka.dev/x/bat
 go 1.21
 
 require (
-	golang.org/x/sys v0.17.0
+	golang.org/x/sys v0.20.0
 	tshaka.dev/x/diff v0.1.0
 )
diff --git a/go.sum b/go.sum
index d900987..f5c485f 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
-golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/tools v0.16.0 h1:GO788SKMRunPIBCXiQyo2AaexLstOrVhuAL5YwsckQM=
 golang.org/x/tools v0.16.0/go.mod h1:kYVVN6I1mBNoB1OX+noeBjbRk4IUEPa7JJ+TJMEooJ0=
 tshaka.dev/x/diff v0.1.0 h1:zO4hxEhdcmq02Uq67oYAFVT0z7k1V95dt171Kue1bJA=