diff --git a/tools/go.mod b/tools/go.mod
index 6346890a..7e593c3a 100644
--- a/tools/go.mod
+++ b/tools/go.mod
@@ -18,6 +18,6 @@ go 1.21
 
 require (
 	github.com/yoheimuta/go-protoparser/v4 v4.11.0
-	golang.org/x/text v0.19.0
+	golang.org/x/text v0.20.0
 	gopkg.in/yaml.v3 v3.0.1
 )
diff --git a/tools/go.sum b/tools/go.sum
index 3ae12e1f..70e9f42f 100644
--- a/tools/go.sum
+++ b/tools/go.sum
@@ -1,7 +1,7 @@
 github.com/yoheimuta/go-protoparser/v4 v4.11.0 h1:zhP3R1bzopFKOco4YouXR7X126ggQX3nQ12OcW958CA=
 github.com/yoheimuta/go-protoparser/v4 v4.11.0/go.mod h1:AHNNnSWnb0UoL4QgHPiOAg2BniQceFscPI5X/BZNHl8=
-golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
-golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+golang.org/x/text v0.20.0 h1:gK/Kv2otX8gz+wn7Rmb3vT96ZwuoxnQlY+HlJVj7Qug=
+golang.org/x/text v0.20.0/go.mod h1:D4IsuqiFMhST5bX19pQ9ikHC2GsaKyk/oF+pn3ducp4=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=