diff --git a/app/controllers/concerns/create_avis_concern.rb b/app/controllers/concerns/create_avis_concern.rb
index 7f1a51c4a..4c35668f3 100644
--- a/app/controllers/concerns/create_avis_concern.rb
+++ b/app/controllers/concerns/create_avis_concern.rb
@@ -36,8 +36,9 @@ module CreateAvisConcern
     create_results = Avis.create(
       expert_emails.flat_map do |email|
         user = User.create_or_promote_to_expert(email, SecureRandom.hex)
-        experts_procedure = user.valid? ? ExpertsProcedure.find_or_create_by(procedure: dossier.procedure, expert: user.expert) : nil
+
         allowed_dossiers.map do |dossier|
+          experts_procedure = user.valid? ? ExpertsProcedure.find_or_create_by(procedure: dossier.procedure, expert: user.expert) : nil
           {
             email: email,
             introduction: create_avis_params[:introduction],
diff --git a/app/tasks/maintenance/fix_avis_experts_procedure_mismatch_task.rb b/app/tasks/maintenance/fix_avis_experts_procedure_mismatch_task.rb
new file mode 100644
index 000000000..a86f5d47d
--- /dev/null
+++ b/app/tasks/maintenance/fix_avis_experts_procedure_mismatch_task.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module Maintenance
+  class FixAvisExpertsProcedureMismatchTask < MaintenanceTasks::Task
+    # Some avis have incorrect experts_procedure associations where the procedure_id
+    # doesn't match the dossier's procedure_id. This task fixes those mismatches.
+
+    def collection
+      Avis
+        .joins(:experts_procedure, dossier: :procedure)
+        .where.not('experts_procedures.procedure_id = procedures.id')
+    end
+
+    def process(avis)
+      expert = avis.expert
+      correct_procedure = avis.dossier.procedure
+
+      correct_experts_procedure = ExpertsProcedure.find_or_create_by(
+        procedure: correct_procedure,
+        expert: expert
+      )
+
+      avis.update!(experts_procedure: correct_experts_procedure)
+    end
+  end
+end
diff --git a/spec/controllers/experts/avis_controller_spec.rb b/spec/controllers/experts/avis_controller_spec.rb
index ed84e994f..13d0cb6f5 100644
--- a/spec/controllers/experts/avis_controller_spec.rb
+++ b/spec/controllers/experts/avis_controller_spec.rb
@@ -456,7 +456,7 @@ describe Experts::AvisController, type: :controller do
         end
       end
 
-      context 'when the preivous avis is confidentiel' do
+      context 'when the previous avis is confidentiel' do
         let(:previous_avis_confidentiel) { true }
 
         context 'when the user asked for a public avis' do
@@ -507,6 +507,42 @@ describe Experts::AvisController, type: :controller do
           end
         end
       end
+
+      context 'when creating avis for linked dossiers with different procedures' do
+        let(:types_de_champ_public) { [{ type: :dossier_link }] }
+        let(:another_procedure) { create(:procedure, :published) }
+        let(:dossier) { create(:dossier, :en_construction, procedure: procedure) }
+        let(:linked_dossier) { create(:dossier, :en_construction, procedure: another_procedure) }
+        let(:linked_experts_procedure) { create(:experts_procedure, expert: previous_avis.expert, procedure: another_procedure) }
+        let!(:linked_avis) { create(:avis, dossier: linked_dossier, experts_procedure: linked_experts_procedure, claimant: previous_avis.claimant) }
+
+        let(:invite_linked_dossiers) { true }
+
+        before do
+          dossier_link_champ = dossier.champs.find_by(type: "Champs::DossierLinkChamp")
+          dossier_link_champ.update!(value: linked_dossier.id)
+        end
+
+        it 'creates experts_procedure with correct procedure for each dossier' do
+          expect {
+            post :create_avis, params: {
+              id: previous_avis.id,
+              procedure_id: procedure.id,
+              avis: {
+                emails: ["expert@example.com"],
+                introduction: "Please review",
+                confidentiel: false,
+                invite_linked_dossiers: true
+              }
+            }
+          }.to change(Avis, :count).by(2)
+
+          Avis.all.each do |avis|
+            # Verify experts_procedures are created with correct procedures
+            expect(avis.experts_procedure.procedure_id).to eq(avis.dossier.procedure.id)
+          end
+        end
+      end
     end
   end
 
diff --git a/spec/tasks/maintenance/fix_avis_experts_procedure_mismatch_task_spec.rb b/spec/tasks/maintenance/fix_avis_experts_procedure_mismatch_task_spec.rb
new file mode 100644
index 000000000..247c2e4c4
--- /dev/null
+++ b/spec/tasks/maintenance/fix_avis_experts_procedure_mismatch_task_spec.rb
@@ -0,0 +1,83 @@
+# frozen_string_literal: true
+
+module Maintenance
+  RSpec.describe FixAvisExpertsProcedureMismatchTask do
+    describe "#collection" do
+      subject(:collection) { described_class.new.collection }
+
+      let!(:mismatched_avis) do
+        expert = create(:expert)
+        procedure1 = create(:procedure)
+        procedure2 = create(:procedure)
+        dossier = create(:dossier, procedure: procedure2)
+        wrong_experts_procedure = create(:experts_procedure, expert: expert, procedure: procedure1)
+
+        create(:avis,
+          dossier: dossier,
+          expert: expert,
+          experts_procedure: wrong_experts_procedure)
+      end
+
+      let!(:correct_avis) do
+        expert = create(:expert)
+        procedure = create(:procedure)
+        dossier = create(:dossier, procedure: procedure)
+        experts_procedure = create(:experts_procedure, expert: expert, procedure: procedure)
+
+        create(:avis,
+          dossier: dossier,
+          expert: expert,
+          experts_procedure: experts_procedure)
+      end
+
+      it "only returns avis with mismatched procedure ids" do
+        expect(collection).to include(mismatched_avis)
+        expect(collection).not_to include(correct_avis)
+      end
+    end
+
+    describe "#process" do
+      subject(:process) { described_class.process(avis) }
+
+      let(:expert) { create(:expert) }
+      let(:procedure1) { create(:procedure) }
+      let(:procedure2) { create(:procedure) }
+      let(:dossier) { create(:dossier, procedure: procedure2) }
+
+      let!(:wrong_experts_procedure) do
+        create(:experts_procedure, expert: expert, procedure: procedure1)
+      end
+
+      let(:avis) do
+        create(:avis,
+          dossier: dossier,
+          expert: expert,
+          experts_procedure: wrong_experts_procedure)
+      end
+
+      it "fixes the experts_procedure association" do
+        expect(avis.experts_procedure.procedure_id).to eq(procedure1.id)
+        expect(avis.dossier.procedure.id).to eq(procedure2.id)
+
+        process
+
+        avis.reload
+        expect(avis.experts_procedure.procedure_id).to eq(procedure2.id)
+        expect(avis.dossier.procedure.id).to eq(procedure2.id)
+      end
+
+      context "when the correct experts_procedure already exists" do
+        let!(:correct_experts_procedure) do
+          create(:experts_procedure, expert: expert, procedure: procedure2)
+        end
+
+        it "uses the existing experts_procedure" do
+          process
+
+          avis.reload
+          expect(avis.experts_procedure).to eq(correct_experts_procedure)
+        end
+      end
+    end
+  end
+end