diff --git a/tests/users/factories.py b/tests/users/factories.py
index 672313febf7..46cd8639f7c 100644
--- a/tests/users/factories.py
+++ b/tests/users/factories.py
@@ -347,7 +347,7 @@ class Params:
 
     @factory.lazy_attribute
     def nir(self):
-        gender = random.choice([1, 2])
+        gender = "1" if self.user.title == "M" else "2"
         if self.birthdate:
             year = self.birthdate.strftime("%y")
             month = self.birthdate.strftime("%m")
diff --git a/tests/www/apply/test_submit.py b/tests/www/apply/test_submit.py
index 74660d77175..013a939a308 100644
--- a/tests/www/apply/test_submit.py
+++ b/tests/www/apply/test_submit.py
@@ -3097,7 +3097,7 @@ def _check_everything_allowed(self, user, extra_post_data_1=None):
         PROCESS_TITLE = "Modification du compte candidat"
 
         post_data = {
-            "title": "M",
+            "title": self.job_seeker.title,
             "first_name": NEW_FIRST_NAME,
             "last_name": "New last name",
             "birthdate": self.job_seeker.jobseeker_profile.birthdate,
@@ -3657,6 +3657,8 @@ def test_detect_existing_job_seeker(client):
 
     job_seeker = JobSeekerFactory(
         jobseeker_profile__nir="",
+        jobseeker_profile__birthdate=datetime.date(1997, 1, 1),
+        title="M",
         first_name="Jérémy",
         email="jeremy@example.com",
     )
@@ -3734,7 +3736,11 @@ def test_detect_existing_job_seeker(client):
         "lack_of_nir_reason": "",
         "lack_of_nir": False,
     }
+    print("-----------------------------------")
+    print(post_data)
+    print("-----------------------------------")
     response = client.post(next_url, data=post_data)
+
     assertContains(
         response,
         (