diff --git a/passerelle/apps/api_entreprise/models.py b/passerelle/apps/api_entreprise/models.py
index a215e1d8..88e16c4e 100644
--- a/passerelle/apps/api_entreprise/models.py
+++ b/passerelle/apps/api_entreprise/models.py
@@ -454,18 +454,17 @@ class APIEntreprise(BaseResource):
     def match_mandataire_social(
         self, request, siren, first_name, last_name, birthdate, method='simple', **kwargs
     ):
-        entreprise = self.get(
-            'v2/entreprises/%s/' % siren,
-            raw=True,
-            **kwargs,
-        )
+        mandataires = self.get(
+            'v3/infogreffe/rcs/unites_legales/%s/mandataires_sociaux' % siren, raw=True, **kwargs
+        ).get('data', [])
+
         methods = {
             'simple': simple_match,
             'levenshtein': levenshtein_match,
         }
         if method not in methods:
             return {'err': 1, 'err_desc': 'method %s not implemented' % method}
-        for mandataire in entreprise.get('entreprise', {}).get('mandataires_sociaux', []):
+        for mandataire in mandataires:
             if methods[method](mandataire, first_name, last_name, birthdate):
                 return {'err': 0, 'data': mandataire}
         return {'err': 0, 'data': {}}
diff --git a/tests/test_api_entreprise.py b/tests/test_api_entreprise.py
index 6cdd3573..76b30123 100644
--- a/tests/test_api_entreprise.py
+++ b/tests/test_api_entreprise.py
@@ -64,90 +64,6 @@ ETABLISSEMENTS_RESPONSE = {
     "gateway_error": False,
 }
 
-ENTREPRISES_RESPONSE = {
-    "entreprise": {
-        "siren": "418166096",
-        "capital_social": 459356,
-        "numero_tva_intracommunautaire": "FR16418166096",
-        "forme_juridique": "SA à directoire (s.a.i.)",
-        "forme_juridique_code": "5699",
-        "nom_commercial": "OCTO-TECHNOLOGY",
-        "procedure_collective": False,
-        "naf_entreprise": "6202A",
-        "libelle_naf_entreprise": "Conseil en systèmes et logiciels informatiques",
-        "raison_sociale": "OCTO-TECHNOLOGY",
-        "siret_siege_social": "41816609600051",
-        "code_effectif_entreprise": "31",
-        "date_creation": 891381600,
-        "categorie_entreprise": "PME",
-        "diffusable_commercialement": True,
-        "tranche_effectif_salarie_entreprise": {
-            "de": 200,
-            "a": 249,
-            "code": "31",
-            "date_reference": "2014",
-            "intitule": "200 à 249 salariés",
-        },
-        "mandataires_sociaux": [
-            {
-                "nom": "HISQUIN",
-                "prenom": "FRANCOIS",
-                "fonction": "PRESIDENT DU DIRECTOIRE",
-                "dirigeant": True,
-                "date_naissance": "1965-01-27",
-                "raison_sociale": "",
-                "identifiant": "",
-                "type": "PP",
-            },
-            {
-                "nom": "",
-                "prenom": "",
-                "fonction": "COMMISSAIRE AUX COMPTES SUPPLEANT",
-                "dirigeant": True,
-                "date_naissance": "",
-                "date_naissance_timestamp": 0,
-                "raison_sociale": "BCRH & ASSOCIES - SOCIETE A RESPONSABILITE LIMITEE A ASSOCIE UNIQUE",
-                "identifiant": "490092574",
-                "type": "PM",
-            },
-        ],
-        "etat_administratif": {
-            "value": "C",  # A (actif) ou C (cessé)
-            "date_cessation": 1315173600,  # null quand actif (A), un timestamp (un entier) quand cessé (C )
-        },
-    },
-    "etablissement_siege": {
-        "siege_social": True,
-        "siret": "41816609600051",
-        "naf": "6202A",
-        "libelle_naf": "Conseil en systèmes et logiciels informatiques",
-        "date_mise_a_jour": 1449183600,
-        "tranche_effectif_salarie_etablissement": {
-            "de": 200,
-            "a": 249,
-            "code": "31",
-            "date_reference": "2014",
-            "intitule": "200 à 249 salariés",
-        },
-        "date_creation_etablissement": 1108594800,
-        "region_implantation": {"code": "11", "value": "Île-de-France"},
-        "commune_implantation": {"code": "75108", "value": "PARIS 8"},
-        "adresse": {
-            "l1": "OCTO TECHNOLOGY",
-            "l4": "50 AVENUE DES CHAMPS ELYSEES",
-            "l6": "75008 PARIS",
-            "l7": "FRANCE",
-            "numero_voie": "50",
-            "type_voie": "AV",
-            "nom_voie": "DES CHAMPS ELYSEES",
-            "code_postal": "75008",
-            "localite": "PARIS 8",
-            "code_insee_localite": "75108",
-        },
-        "etat_administratif": {"value": "F", "date_fermeture": 1315173600},
-    },
-    "gateway_error": False,
-}
 
 UNITES_LEGALES_RESPONSE = {
     "data": {
@@ -404,7 +320,10 @@ def test_simple_match_mandataire_social(app, resource):
     params.update(REQUEST_PARAMS)
 
     with responses.RequestsMock() as rsps:
-        rsps.get('https://entreprise.api.gouv.fr/v2/entreprises/443170139/', json=ENTREPRISES_RESPONSE)
+        rsps.get(
+            'https://entreprise.api.gouv.fr/v3/infogreffe/rcs/unites_legales/443170139/mandataires_sociaux',
+            json=RCS_UNITES_LEGALES_MANDATAIRES_SOCIAUX_RESPONSE,
+        )
         url = '/api-entreprise/test/match_mandataire_social/443170139/'
         response = app.get(url, params=params)
 
@@ -448,7 +367,10 @@ def test_levenshtein_match_mandataire_social(app, resource):
     params.update(REQUEST_PARAMS)
 
     with responses.RequestsMock() as rsps:
-        rsps.get('https://entreprise.api.gouv.fr/v2/entreprises/443170139/', json=ENTREPRISES_RESPONSE)
+        rsps.get(
+            'https://entreprise.api.gouv.fr/v3/infogreffe/rcs/unites_legales/443170139/mandataires_sociaux',
+            json=RCS_UNITES_LEGALES_MANDATAIRES_SOCIAUX_RESPONSE,
+        )
 
         url = '/api-entreprise/test/match_mandataire_social/443170139/'
         response = app.get(url, params=params)