diff --git a/Project.toml b/Project.toml
index d87cee2..a361401 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "QEDFeynmanDiagrams"
 uuid = "3232ad24-8ec1-4588-843e-e2ed2eae1ff3"
-version = "0.1.0"
 authors = ["AntonReinhard <a.reinhard@hzdr.de>", "Uwe Hernandez Acosta <u.hernandez@hzdr.de>"]
+version = "0.1.0"
 
 [deps]
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
diff --git a/src/computable_dags/generation.jl b/src/computable_dags/generation.jl
index 3c26fab..9806354 100644
--- a/src/computable_dags/generation.jl
+++ b/src/computable_dags/generation.jl
@@ -374,8 +374,8 @@ function generate_DAG(proc::PROC) where {PROC<:AbstractProcessDefinition}
     SPECIFIC_VP = VirtualParticle{PROC,NTuple{I,Bool},NTuple{O,Bool}}
     particles::Vector{SPECIFIC_VP} = virtual_particles(proc)                  # virtual particles that will be input to propagator tasks
 
-    # TODO apparently this sort is deprecated, change it
-    pairs = sort(particle_pairs(particles))              # pairs to generate the pair tasks
+    pairs = OrderedDict(particle_pairs(particles))       # pairs to generate the pair tasks
+    sort!(pairs)
     triples = sort(total_particle_triples(particles))    # triples to generate the triple tasks
 
     graph = DAG()