diff --git a/api/schema.py b/api/schema.py
index 0660da20f..b5df77111 100644
--- a/api/schema.py
+++ b/api/schema.py
@@ -25,7 +25,7 @@
 # ##############################################################################
 from drf_spectacular.generators import SchemaGenerator
 
-ADMISSION_SDK_VERSION = "1.1.16"
+ADMISSION_SDK_VERSION = "1.1.16.dev1739"
 
 
 class AdmissionSchemaGenerator(SchemaGenerator):
diff --git a/ddd/admission/doctorat/preparation/dtos/groupe_supervision.py b/ddd/admission/doctorat/preparation/dtos/groupe_supervision.py
index aeadf9fef..6c8ef8a16 100644
--- a/ddd/admission/doctorat/preparation/dtos/groupe_supervision.py
+++ b/ddd/admission/doctorat/preparation/dtos/groupe_supervision.py
@@ -45,6 +45,7 @@ class PromoteurDTO(interface.DTO):
     code_pays: str = ""
     pays: str = ""
     est_externe: bool = False
+    langue: str = ''
 
 
 @attr.dataclass(frozen=True, slots=True)
@@ -60,6 +61,7 @@ class MembreCADTO(interface.DTO):
     code_pays: str = ""
     pays: str = ""
     est_externe: bool = False
+    langue: str = ''
 
 
 @attr.dataclass(frozen=True, slots=True)
diff --git a/infrastructure/admission/doctorat/preparation/domain/service/in_memory/membre_CA.py b/infrastructure/admission/doctorat/preparation/domain/service/in_memory/membre_CA.py
index 137c0f68d..30c9ee68f 100644
--- a/infrastructure/admission/doctorat/preparation/domain/service/in_memory/membre_CA.py
+++ b/infrastructure/admission/doctorat/preparation/domain/service/in_memory/membre_CA.py
@@ -43,6 +43,7 @@ class MembreCA:
     institution: str = ''
     ville: str = ''
     pays: str = ''
+    langue: str = 'fr-be'
 
 
 class MembreCAInMemoryTranslator(IMembreCATranslator):
@@ -87,6 +88,7 @@ def get_dto(cls, membre_ca_id: 'MembreCAIdentity') -> 'MembreCADTO':
                 institution=p.institution,
                 ville=p.ville,
                 pays=p.pays,
+                langue=p.langue,
             )
         except StopIteration:  # pragma: no cover
             raise MembreCANonTrouveException
diff --git a/infrastructure/admission/doctorat/preparation/domain/service/in_memory/promoteur.py b/infrastructure/admission/doctorat/preparation/domain/service/in_memory/promoteur.py
index f7b31e739..62dda7178 100644
--- a/infrastructure/admission/doctorat/preparation/domain/service/in_memory/promoteur.py
+++ b/infrastructure/admission/doctorat/preparation/domain/service/in_memory/promoteur.py
@@ -115,6 +115,7 @@ def _build_dto_from_model(cls, promoteur: 'Promoteur') -> 'PromoteurDTO':
             ville=promoteur.ville,
             pays=promoteur.pays,
             est_externe=promoteur.externe,
+            langue=promoteur.langue,
         )
 
     @classmethod
diff --git a/infrastructure/admission/doctorat/preparation/domain/service/membre_CA.py b/infrastructure/admission/doctorat/preparation/domain/service/membre_CA.py
index 11135d47d..1b388f0ab 100644
--- a/infrastructure/admission/doctorat/preparation/domain/service/membre_CA.py
+++ b/infrastructure/admission/doctorat/preparation/domain/service/membre_CA.py
@@ -73,6 +73,7 @@ def get_dto(cls, membre_ca_id: 'MembreCAIdentity') -> MembreCADTO:
             code_pays=actor.country_id and actor.country.iso_code or '',
             pays=actor.country_id and getattr(actor.country, 'name_en' if get_language() == 'en' else 'name') or '',
             est_externe=actor.is_external,
+            langue=actor.language,
         )
 
     @classmethod
diff --git a/infrastructure/admission/doctorat/preparation/domain/service/promoteur.py b/infrastructure/admission/doctorat/preparation/domain/service/promoteur.py
index 16bbc9ad4..213221a71 100644
--- a/infrastructure/admission/doctorat/preparation/domain/service/promoteur.py
+++ b/infrastructure/admission/doctorat/preparation/domain/service/promoteur.py
@@ -78,6 +78,7 @@ def _build_dto_from_model(cls, actor: 'SupervisionActor') -> 'PromoteurDTO':
             code_pays=actor.country_id and actor.country.iso_code or '',
             pays=actor.country_id and getattr(actor.country, 'name_en' if get_language() == 'en' else 'name') or '',
             est_externe=actor.is_external,
+            langue=actor.language,
         )
 
     @classmethod
diff --git a/infrastructure/admission/doctorat/preparation/repository/groupe_de_supervision.py b/infrastructure/admission/doctorat/preparation/repository/groupe_de_supervision.py
index 53103956a..1e80de4b7 100644
--- a/infrastructure/admission/doctorat/preparation/repository/groupe_de_supervision.py
+++ b/infrastructure/admission/doctorat/preparation/repository/groupe_de_supervision.py
@@ -374,6 +374,7 @@ def get_members(cls, groupe_id: 'GroupeDeSupervisionIdentity') -> List[Union['Pr
                     and getattr(actor.country, 'name_en' if get_language() == 'en' else 'name')
                     or '',
                     est_externe=actor.is_external,
+                    langue=actor.language,
                 )
             )
         return members
diff --git a/infrastructure/admission/doctorat/preparation/repository/in_memory/groupe_de_supervision.py b/infrastructure/admission/doctorat/preparation/repository/in_memory/groupe_de_supervision.py
index 55d64a208..1133c310c 100644
--- a/infrastructure/admission/doctorat/preparation/repository/in_memory/groupe_de_supervision.py
+++ b/infrastructure/admission/doctorat/preparation/repository/in_memory/groupe_de_supervision.py
@@ -312,4 +312,5 @@ def initialize_supervision_group_from_proposition(
                 institute=member.institution,
                 city=member.ville,
                 country_code=member.code_pays,
+                language=member.langue,
             )
diff --git a/schema.yml b/schema.yml
index 977958566..52576ab7a 100644
--- a/schema.yml
+++ b/schema.yml
@@ -1,7 +1,7 @@
 openapi: 3.0.3
 info:
   title: Admission API
-  version: 1.1.16
+  version: 1.1.16.dev1739
   description: This API delivers data for the Admission project.
   contact:
     name: UCLouvain - OSIS
@@ -9541,12 +9541,15 @@ components:
           type: string
         est_externe:
           type: boolean
+        langue:
+          type: string
       required:
       - code_pays
       - email
       - est_docteur
       - est_externe
       - institution
+      - langue
       - nom
       - pays
       - prenom
@@ -10245,12 +10248,15 @@ components:
           type: string
         est_externe:
           type: boolean
+        langue:
+          type: string
       required:
       - code_pays
       - email
       - est_docteur
       - est_externe
       - institution
+      - langue
       - nom
       - pays
       - prenom