diff --git a/go.mod b/go.mod
index f9a363d..6bc3414 100644
--- a/go.mod
+++ b/go.mod
@@ -5,4 +5,4 @@ go 1.18
 
 require github.com/mackerelio/golib v1.2.1
 
-require golang.org/x/text v0.13.0
+require golang.org/x/text v0.14.0
diff --git a/go.sum b/go.sum
index 3f45c06..a827064 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 v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
-golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=