diff --git a/go.mod b/go.mod
index d21f9052..9094904a 100644
--- a/go.mod
+++ b/go.mod
@@ -120,7 +120,7 @@ require (
 	github.com/yeya24/promlinter v0.2.0
 	github.com/ykadowak/zerologlint v0.1.5
 	gitlab.com/bosi/decorder v0.4.1
-	go-simpler.org/musttag v0.12.0
+	go-simpler.org/musttag v0.12.1
 	go-simpler.org/sloglint v0.5.0
 	go.uber.org/automaxprocs v1.5.3
 	golang.org/x/exp v0.0.0-20240103183307-be819d1f06fc
diff --git a/go.sum b/go.sum
index 62710c6a..07f727af 100644
--- a/go.sum
+++ b/go.sum
@@ -590,8 +590,8 @@ gitlab.com/bosi/decorder v0.4.1 h1:VdsdfxhstabyhZovHafFw+9eJ6eU0d2CkFNJcZz/NU4=
 gitlab.com/bosi/decorder v0.4.1/go.mod h1:jecSqWUew6Yle1pCr2eLWTensJMmsxHsBwt+PVbkAqA=
 go-simpler.org/assert v0.7.0 h1:OzWWZqfNxt8cLS+MlUp6Tgk1HjPkmgdKBq9qvy8lZsA=
 go-simpler.org/assert v0.7.0/go.mod h1:74Eqh5eI6vCK6Y5l3PI8ZYFXG4Sa+tkr70OIPJAUr28=
-go-simpler.org/musttag v0.12.0 h1:yP6PGvPXXez8WeoaHtFaVbrdtfWfTUY3WKA+QLlHsEs=
-go-simpler.org/musttag v0.12.0/go.mod h1:46HKu04A3Am9Lne5kKP0ssgwY3AeIlqsDzz3UxKROpY=
+go-simpler.org/musttag v0.12.1 h1:yaMcjl/uyVnd1z6GqIhBiFH/PoqNN9f2IgtU7bp7W/0=
+go-simpler.org/musttag v0.12.1/go.mod h1:46HKu04A3Am9Lne5kKP0ssgwY3AeIlqsDzz3UxKROpY=
 go-simpler.org/sloglint v0.5.0 h1:2YCcd+YMuYpuqthCgubcF5lBSjb6berc5VMOYUHKrpY=
 go-simpler.org/sloglint v0.5.0/go.mod h1:EUknX5s8iXqf18KQxKnaBHUPVriiPnOrPjjJcsaTcSQ=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=