diff --git a/go.mod b/go.mod
index 9f714b1..5e361f1 100644
--- a/go.mod
+++ b/go.mod
@@ -4,5 +4,5 @@ go 1.18
 
 require (
 	github.com/mackerelio/golib v1.2.1
-	golang.org/x/text v0.15.0
+	golang.org/x/text v0.17.0
 )
diff --git a/go.sum b/go.sum
index d12543f..fec1338 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
 github.com/mackerelio/golib v1.2.1 h1:SDcDn6Jw3p9bi1N0bg1Z/ilG5qcBB23qL8xNwrU0gg4=
 github.com/mackerelio/golib v1.2.1/go.mod h1:b8ZaapsHGH1FlEJlCqfD98CqafLeyMevyATDlID2BsM=
-golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
-golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc=
+golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=