diff --git a/src/registrar/tests/test_admin.py b/src/registrar/tests/test_admin.py
index 4bd58db25..43771a260 100644
--- a/src/registrar/tests/test_admin.py
+++ b/src/registrar/tests/test_admin.py
@@ -1747,10 +1747,10 @@ class ContactAdminTest(TestCase):
         contact, _ = Contact.objects.get_or_create(user=self.staffuser)
 
         # join it to 4 domain requests. The 5th join will be a user.
-        completed_application(submitter=contact, name="city1.gov")
-        completed_application(submitter=contact, name="city2.gov")
-        completed_application(submitter=contact, name="city3.gov")
-        completed_application(submitter=contact, name="city4.gov")
+        application1 = completed_application(submitter=contact, name="city1.gov")
+        application2 = completed_application(submitter=contact, name="city2.gov")
+        application3 = completed_application(submitter=contact, name="city3.gov")
+        application4 = completed_application(submitter=contact, name="city4.gov")
 
         with patch("django.contrib.messages.warning") as mock_warning:
             # Use the test client to simulate the request
@@ -1762,10 +1762,10 @@ class ContactAdminTest(TestCase):
             # Note: The 5th join will be a user.
             mock_warning.assert_called_once_with(
                 response.wsgi_request,
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/1/change/'>city1.gov</a><br/>"
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/2/change/'>city2.gov</a><br/>"
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/3/change/'>city3.gov</a><br/>"
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/4/change/'>city4.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application1.pk}/change/'>city1.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application2.pk}/change/'>city2.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application3.pk}/change/'>city3.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application4.pk}/change/'>city4.gov</a><br/>"
                 "Joined to User: <a href='/admin/registrar/user/2/change/'>staff@example.com</a><br/>",
             )
 
@@ -1778,11 +1778,11 @@ class ContactAdminTest(TestCase):
         # Create an instance of the model
         # join it to 5 domain requests. The 6th join will be a user.
         contact, _ = Contact.objects.get_or_create(user=self.staffuser)
-        completed_application(submitter=contact, name="city1.gov")
-        completed_application(submitter=contact, name="city2.gov")
-        completed_application(submitter=contact, name="city3.gov")
-        completed_application(submitter=contact, name="city4.gov")
-        completed_application(submitter=contact, name="city5.gov")
+        application1 = completed_application(submitter=contact, name="city1.gov")
+        application2 = completed_application(submitter=contact, name="city2.gov")
+        application3 = completed_application(submitter=contact, name="city3.gov")
+        application4 = completed_application(submitter=contact, name="city4.gov")
+        application5 = completed_application(submitter=contact, name="city5.gov")
 
         with patch("django.contrib.messages.warning") as mock_warning:
             # Use the test client to simulate the request
@@ -1794,11 +1794,11 @@ class ContactAdminTest(TestCase):
             # Note: The 6th join will be a user.
             mock_warning.assert_called_once_with(
                 response.wsgi_request,
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/1/change/'>city1.gov</a><br/>"
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/2/change/'>city2.gov</a><br/>"
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/3/change/'>city3.gov</a><br/>"
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/4/change/'>city4.gov</a><br/>"
-                "Joined to DomainApplication: <a href='/admin/registrar/domainapplication/5/change/'>city5.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application1.pk}/change/'>city1.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application2.pk}/change/'>city2.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application3.pk}/change/'>city3.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application4.pk}/change/'>city4.gov</a><br/>"
+                f"Joined to DomainApplication: <a href='/admin/registrar/domainapplication/{application5.pk}/change/'>city5.gov</a><br/>"
                 "And 1 more...",
             )