diff --git a/Project.toml b/Project.toml
index 97958cff..d0aab94f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "BlockSparseArrays"
 uuid = "2c9a651f-6452-4ace-a6ac-809f4280fbb4"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
-version = "0.7.4"
+version = "0.7.5"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
@@ -31,7 +31,7 @@ Adapt = "4.1.1"
 Aqua = "0.8.9"
 ArrayLayouts = "1.10.4"
 BlockArrays = "1.2.0"
-DerivableInterfaces = "0.4"
+DerivableInterfaces = "0.5"
 DiagonalArrays = "0.3"
 Dictionaries = "0.4.3"
 FillArrays = "1.13.0"
diff --git a/src/blocksparsearrayinterface/blocksparsearrayinterface.jl b/src/blocksparsearrayinterface/blocksparsearrayinterface.jl
index 9025c8f2..5c1ed5be 100644
--- a/src/blocksparsearrayinterface/blocksparsearrayinterface.jl
+++ b/src/blocksparsearrayinterface/blocksparsearrayinterface.jl
@@ -101,18 +101,21 @@ blockstype(a::BlockArray) = blockstype(typeof(a))
 blocktype(arraytype::Type{<:BlockArray}) = eltype(blockstype(arraytype))
 blocktype(a::BlockArray) = eltype(blocks(a))
 
-abstract type AbstractBlockSparseArrayInterface <: AbstractSparseArrayInterface end
+abstract type AbstractBlockSparseArrayInterface{N} <: AbstractSparseArrayInterface{N} end
 
 # TODO: Also support specifying the `blocktype` along with the `eltype`.
-function DerivableInterfaces.arraytype(::AbstractBlockSparseArrayInterface, T::Type)
-  return BlockSparseArray{T}
+function Base.similar(::AbstractBlockSparseArrayInterface, T::Type, ax::Tuple)
+  return similar(BlockSparseArray{T}, ax)
 end
 
-struct BlockSparseArrayInterface <: AbstractBlockSparseArrayInterface end
+struct BlockSparseArrayInterface{N} <: AbstractBlockSparseArrayInterface{N} end
+BlockSparseArrayInterface(::Val{N}) where {N} = BlockSparseArrayInterface{N}()
+BlockSparseArrayInterface{M}(::Val{N}) where {M,N} = BlockSparseArrayInterface{N}()
+BlockSparseArrayInterface() = BlockSparseArrayInterface{Any}()
 
-@interface ::AbstractBlockSparseArrayInterface BlockArrays.blocks(a::AbstractArray) = error(
-  "Not implemented"
-)
+@interface ::AbstractBlockSparseArrayInterface function BlockArrays.blocks(a::AbstractArray)
+  return error("Not implemented")
+end
 
 @interface ::AbstractBlockSparseArrayInterface function SparseArraysBase.isstored(
   a::AbstractArray{<:Any,N}, I::Vararg{Int,N}