diff --git a/Project.toml b/Project.toml
index f903ae9..1597819 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,7 +11,7 @@ JLD2 = "033835bb-8acc-5ee8-8aae-3f567f8a3819"
 JuliaFormatter = "98e50ef6-434e-11e9-1051-2b60c6c9e899"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MAT = "23992714-dd62-5051-b70f-ba57cb901cac"
-NamedTupleTools = "d9ec5142-1e00-5aa0-9d6a-321866360f50"
+MutableNamedTuples = "af6c499f-54b4-48cc-bbd2-094bba7533c7"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
@@ -22,6 +22,6 @@ FileIO = "1.16"
 JLD2 = "0.4"
 JuliaFormatter = "1.0.56"
 MAT = "0.10"
-NamedTupleTools = "0.14"
+MutableNamedTuples = "0.1.3"
 StatsBase = "0.34"
 julia = "1.9"
diff --git a/src/model_init/agents.jl b/src/model_init/agents.jl
index c6a818c..27de2c0 100644
--- a/src/model_init/agents.jl
+++ b/src/model_init/agents.jl
@@ -352,7 +352,7 @@ This is a Model type. It is used to store all the agents of the economy.
 - `rotw`: RestOfTheWorld
 - `agg`: Aggregates
 """
-struct Model
+mutable struct Model
     w_act::AbstractWorkers
     w_inact::AbstractWorkers
     firms::AbstractFirms
diff --git a/src/model_init/init.jl b/src/model_init/init.jl
index 58e470c..2c0d9de 100644
--- a/src/model_init/init.jl
+++ b/src/model_init/init.jl
@@ -1,6 +1,6 @@
-using NamedTupleTools
+using MutableNamedTuples
 recursive_namedtuple(x::Any) = x
-recursive_namedtuple(d::Dict) = namedtuple(Dict(k => recursive_namedtuple(v) for (k, v) in d))
+recursive_namedtuple(d::Dict) = MutableNamedTuple(;Dict(k => recursive_namedtuple(v) for (k, v) in d)...)
 
 """
     initialise_model(parameters, initial_conditions, T, typeInt = Int64, typeFloat = Float64)