diff --git a/app/models/concerns/dossier_rebase_concern.rb b/app/models/concerns/dossier_rebase_concern.rb
index 90c0909a0..8b0ab50ba 100644
--- a/app/models/concerns/dossier_rebase_concern.rb
+++ b/app/models/concerns/dossier_rebase_concern.rb
@@ -32,6 +32,10 @@ module DossierRebaseConcern
     !champs.filter { _1.stable_id == stable_id }.any? { _1.in?(options) }
   end
 
+  def can_rebase_expression_reguliere_change?(stable_id, expression_reguliere)
+    false
+  end
+
   private
 
   def accepted_en_construction_changes?
diff --git a/app/models/procedure_revision_change.rb b/app/models/procedure_revision_change.rb
index 8079c8cdb..2bb4a95f9 100644
--- a/app/models/procedure_revision_change.rb
+++ b/app/models/procedure_revision_change.rb
@@ -60,7 +60,6 @@ class ProcedureRevisionChange
 
     def can_rebase?(dossier = nil)
       return true if private?
-
       case attribute
       when :drop_down_options
         (from - to).empty? || dossier&.can_rebase_drop_down_options_change?(stable_id, from - to)
@@ -68,7 +67,7 @@ class ProcedureRevisionChange
         !from && to
       when :mandatory
         (from && !to) || dossier&.can_rebase_mandatory_change?(stable_id)
-      when :type_champ, :condition
+      when :type_champ, :condition, :expression_reguliere
         false
       else
         true
diff --git a/app/validators/expression_reguliere_validator.rb b/app/validators/expression_reguliere_validator.rb
index 7ba53525a..72994f767 100644
--- a/app/validators/expression_reguliere_validator.rb
+++ b/app/validators/expression_reguliere_validator.rb
@@ -2,7 +2,7 @@ class ExpressionReguliereValidator < ActiveModel::Validator
   def validate(record)
     if record.value.present?
       if !record.value.match?(Regexp.new(record.expression_reguliere, timeout: 5.0))
-        record.errors.add(:value, I18n.t('errors.messages.invalid_regexp', expression_reguliere_error_message: record.expression_reguliere_error_message))
+        record.errors.add(:value, :invalid_regexp)
       end
     end
   rescue Regexp::TimeoutError
diff --git a/config/locales/en.yml b/config/locales/en.yml
index f56eccf0b..b42a1b05e 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -687,7 +687,6 @@ en:
       evil_regexp: The regular expression you have entered is potentially dangerous and could lead to performance issues.
       mismatch_regexp: The provided example must match the regular expression
       syntax_error_regexp: The syntax of the regular expression is invalid
-      invalid_regexp: "%{expression_reguliere_error_message}"
       # # procedure_not_draft: "This procedure is not a draft anymore."
       # cadastres_empty:
       #   one: "Aucune parcelle cadastrale sur la zone sélectionnée"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index a3b2e23f6..080c89d98 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -692,7 +692,6 @@ fr:
       evil_regexp: L'expression régulière que vous avez entrée est potentiellement dangereuse et pourrait entraîner des problèmes de performance
       mismatch_regexp: L'exemple doit correspondre à l'expression régulière fournie
       syntax_error_regexp: La syntaxe de l'expression régulière n'est pas valide
-      invalid_regexp: "%{expression_reguliere_error_message}"
       empty_repetition: '« %{value} » doit comporter au moins un champ répétable'
       empty_drop_down: '« %{value} » doit comporter au moins un choix sélectionnable'
       # procedure_not_draft: "Cette démarche n’est maintenant plus en brouillon."
diff --git a/spec/models/concern/dossier_rebase_concern_spec.rb b/spec/models/concern/dossier_rebase_concern_spec.rb
index d43a9c339..3a90ff4b4 100644
--- a/spec/models/concern/dossier_rebase_concern_spec.rb
+++ b/spec/models/concern/dossier_rebase_concern_spec.rb
@@ -124,6 +124,21 @@ describe DossierRebaseConcern do
         end
       end
 
+      context 'with type de champ regexp and regexp change' do
+        let(:procedure) { create(:procedure, types_de_champ_public: [{ mandatory: true }, { type: :expression_reguliere }], types_de_champ_private: [{}]) }
+
+        before do
+          procedure.draft_revision.find_and_ensure_exclusive_use(type_de_champ.stable_id).update(expression_reguliere: /\d+/)
+          procedure.publish_revision!
+          dossier.reload
+        end
+
+        it 'should be false' do
+          expect(dossier.pending_changes).not_to be_empty
+          expect(dossier.can_rebase?).to be_falsey
+        end
+      end
+
       context 'with removed type de champ' do
         before do
           procedure.draft_revision.remove_type_de_champ(type_de_champ.stable_id)
diff --git a/spec/models/dossier_spec.rb b/spec/models/dossier_spec.rb
index 30a00691b..e6a332d6c 100644
--- a/spec/models/dossier_spec.rb
+++ b/spec/models/dossier_spec.rb
@@ -1604,13 +1604,11 @@ describe Dossier, type: :model do
       before do
         champ = dossier.champs_public.first
         champ.value = expression_reguliere_exemple_text
-        champ.save!
-        dossier.reload
+        dossier.save
       end
 
       it 'should not have errors' do
-        expect(errors).not_to be_empty
-        expect(errors.first).to be_nil
+        expect(dossier.errors).to be_empty
       end
     end
   end