diff --git a/go.mod b/go.mod
index 5b09813..8be6b0a 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/goal-web/collection
 go 1.25.0
 
 require (
-	github.com/goal-web/contracts v0.5.4
+	github.com/goal-web/contracts v0.5.5
 	github.com/goal-web/supports v0.5.12
 	github.com/shopspring/decimal v1.4.0
 	github.com/stretchr/testify v1.11.1
diff --git a/go.sum b/go.sum
index 6da1943..b3a49a5 100644
--- a/go.sum
+++ b/go.sum
@@ -12,8 +12,8 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
-github.com/goal-web/contracts v0.5.4 h1:j8s2QWUAiTdUyUCrFKbAcfwyp+LF886xL6TuMAtElgY=
-github.com/goal-web/contracts v0.5.4/go.mod h1:lU8vp38Q5qPjMs7cGmRaJ9+LYEBVJew1yvwfxycP+io=
+github.com/goal-web/contracts v0.5.5 h1:eylJvclVYdiZQ4y15/pzNkc3mlBy58f22UJSmUxhcXk=
+github.com/goal-web/contracts v0.5.5/go.mod h1:lU8vp38Q5qPjMs7cGmRaJ9+LYEBVJew1yvwfxycP+io=
 github.com/goal-web/supports v0.5.12 h1:fxAf/Y5nRvUFhFhR4pw0SBRuip1fmC+zZZTRIf0tZdQ=
 github.com/goal-web/supports v0.5.12/go.mod h1:dDXR4+YrXDleExZuVeg7oZeMStlEXOUY9pk/p9IBiGI=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=