diff --git a/Project.toml b/Project.toml
index 30bfc2f..05c9942 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "SymmetrySectors"
 uuid = "f8a8ad64-adbc-4fce-92f7-ffe2bb36a86e"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
-version = "0.1.0"
+version = "0.1.1"
 
 [deps]
 BlockArrays = "8e7c35d0-a365-5155-bbbb-fb81a777f24e"
@@ -11,7 +11,7 @@ LabelledNumbers = "f856a3a6-4152-4ec4-b2a7-02c1a55d7993"
 
 [compat]
 BlockArrays = "1.2.0"
-GradedUnitRanges = "0.1.0"
+GradedUnitRanges = "0.1.1"
 HalfIntegers = "1.6.0"
 LabelledNumbers = "0.1.0"
 julia = "1.10"
diff --git a/src/sector_product.jl b/src/sector_product.jl
index 39d4e80..175d53e 100644
--- a/src/sector_product.jl
+++ b/src/sector_product.jl
@@ -3,7 +3,7 @@
 
 using BlockArrays: blocklengths
 using LabelledNumbers: LabelledInteger, label, labelled, unlabel
-using GradedUnitRanges: GradedUnitRanges, dual
+using GradedUnitRanges: GradedUnitRanges, dual, map_blocklabels
 
 # =====================================  Definition  =======================================
 struct SectorProduct{Sectors} <: AbstractSector
@@ -232,10 +232,6 @@ end
 
 arguments_diff(nt1::NamedTuple, nt2::NamedTuple) = symdiff_keys(nt1, nt2)
 
-function map_blocklabels(f, r::AbstractUnitRange)
-  return gradedrange(labelled.(unlabel.(blocklengths(r)), f.(blocklabels(r))))
-end
-
 function shared_arguments_fusion_rule(shared1::NT, shared2::NT) where {NT<:NamedTuple}
   tuple_fused = shared_arguments_fusion_rule(values(shared1), values(shared2))
   return map_blocklabels(SectorProduct ∘ NT ∘ arguments ∘ SectorProduct, tuple_fused)