diff --git a/dicos/04_maj.xml b/dicos/04_maj.xml
index c716de0..8d312e5 100644
--- a/dicos/04_maj.xml
+++ b/dicos/04_maj.xml
@@ -7,16 +7,24 @@
 
     <variables>
         <family name='dépôt tiers'>
-            <variable name='additional_repository_global_priority' type='number' description='Priorité globale du dépôt'>
+            <variable name='additional_repository_priority_target' type='string' description='Dépôt avec une priorité personnalisée' mandatory='True' multi='True'/>
+            <variable name='additional_repository_global_priority' type='number' description='Priorité globale du dépôt' mandatory='True'>
                 <value>1500</value>
             </variable>
+            <variable name='additional_repository_exempted_packages' type='string' description='Paquets exemptés du changement de priorité'/>
         </family>
     </variables>
 
     <constraints>
+        <group master='additionnal_repository_priority_target'>
+            <slave>additional_repository_global_priority</slave>
+            <slave>additional_repository_exempted_packages</slave>
+        </group>
     </constraints>
 
     <help>
+        <variable name='additional_repository_global_priority'>Une valeur supérieure à 500 (valeur par défaut) rend moins prioritaire les paquets du dépôt, une valeur inférieure, plus prioritaire</variable>
+        <variable name='additional_repository_exempted_packages'>Liste des paquets séparés par des espaces dont la priorité sera celle par défaut plutôt que celle définie globalement pour le dépôt</variable>
     </help>
 
 </creole>
diff --git a/tmpl/99-additional_repositories b/tmpl/99-additional_repositories
index 05fe0ca..8ed6deb 100644
--- a/tmpl/99-additional_repositories
+++ b/tmpl/99-additional_repositories
@@ -7,9 +7,24 @@
   %return %%repository
 %end def
 
-%for %%repository in %%getVar('additional_repository_name', [])
-Package: *
-Pin: release %%repository_identification(%%repository.additional_repository_source)
-Pin-Priority: %%additional_repository_global_priority
-
+%set %%repositories_detail = {'name': r.additional_repository_name, 'source': r.additional_repository_source, 'priority': 500, 'execptions': [] for r in %%getVar('additional_repository_name')}
+%for %%priority_target in %%getVar('additional_repository_priority_target', [])
+ %if %%priority_target.additional_priority_target in %%repositories_detail
+  %silent %%repositories_detail[%%priority_target.additional_repository_priority_target]['priority'] = %%priority_target.additional_repository_global_priority
+  %silent %%repositories_detail[%%priority_target.additional_repository_priority_target]['exceptions'] = %%priority_target.additional_repository_exempted_packages.split()
+ %end if
 %end for
+
+
+%for %%repository in %%repositories_detail
+Package: *
+Pin: release %%repository_identification(%%repository['source'])
+Pin-Priority: %%repository['priority']
+
+ %for %%exception in %%repositories_detail[%%repository]['exceptions']
+Package: %%exception
+Pin: release %%repository_identification(%%repository['source'])
+Pin-Priority: 500
+ %end for
+%end for
+