diff --git a/tests/admin_views/tests.py b/tests/admin_views/tests.py
index ea83b6881f..13af96c004 100644
--- a/tests/admin_views/tests.py
+++ b/tests/admin_views/tests.py
@@ -69,6 +69,7 @@ from .models import (
     Collector,
     Color,
     ComplexSortedPerson,
+    Country,
     CoverLetter,
     CustomArticle,
     CyclicOne,
@@ -6698,11 +6699,12 @@ class SeleniumTests(AdminSeleniumTestCase):
         self.wait_until(lambda d: len(d.window_handles) == 1, 1)
         self.selenium.switch_to.window(self.selenium.window_handles[0])
 
+        argentina = Country.objects.get(name="Argentina")
         self.assertHTMLEqual(
             _get_HTML_inside_element_by_id(born_country_select_id),
-            """
+            f"""
             <option value="" selected="">---------</option>
-            <option value="1" selected="">Argentina</option>
+            <option value="{argentina.pk}" selected="">Argentina</option>
             """,
         )
         # Argentina isn't added to the living_country select nor selected by
@@ -6736,12 +6738,13 @@ class SeleniumTests(AdminSeleniumTestCase):
         self.wait_until(lambda d: len(d.window_handles) == 1, 1)
         self.selenium.switch_to.window(self.selenium.window_handles[0])
 
+        spain = Country.objects.get(name="Spain")
         self.assertHTMLEqual(
             _get_HTML_inside_element_by_id(born_country_select_id),
-            """
+            f"""
             <option value="" selected="">---------</option>
-            <option value="1" selected="">Argentina</option>
-            <option value="2">Spain</option>
+            <option value="{argentina.pk}" selected="">Argentina</option>
+            <option value="{spain.pk}">Spain</option>
             """,
         )
 
@@ -6778,12 +6781,13 @@ class SeleniumTests(AdminSeleniumTestCase):
         self.wait_until(lambda d: len(d.window_handles) == 1, 1)
         self.selenium.switch_to.window(self.selenium.window_handles[0])
 
+        italy = spain
         self.assertHTMLEqual(
             _get_HTML_inside_element_by_id(born_country_select_id),
-            """
+            f"""
             <option value="" selected="">---------</option>
-            <option value="1" selected="">Argentina</option>
-            <option value="2">Italy</option>
+            <option value="{argentina.pk}" selected="">Argentina</option>
+            <option value="{italy.pk}">Italy</option>
             """,
         )
         # Italy is added to the living_country select and it's also selected by
diff --git a/tests/admin_widgets/tests.py b/tests/admin_widgets/tests.py
index efff4e47d7..bd2dd10cc4 100644
--- a/tests/admin_widgets/tests.py
+++ b/tests/admin_widgets/tests.py
@@ -1740,8 +1740,8 @@ class HorizontalVerticalFilterSeleniumTests(AdminWidgetSeleniumTestCase):
 class AdminRawIdWidgetSeleniumTests(AdminWidgetSeleniumTestCase):
     def setUp(self):
         super().setUp()
-        Band.objects.create(id=42, name="Bogey Blues")
-        Band.objects.create(id=98, name="Green Potatoes")
+        self.blues = Band.objects.create(name="Bogey Blues")
+        self.potatoes = Band.objects.create(name="Green Potatoes")
 
     @screenshot_cases(["desktop_size", "mobile_size", "rtl", "dark", "high_contrast"])
     def test_ForeignKey(self):
@@ -1763,23 +1763,23 @@ class AdminRawIdWidgetSeleniumTests(AdminWidgetSeleniumTestCase):
         self.selenium.find_element(By.ID, "lookup_id_main_band").click()
         self.wait_for_and_switch_to_popup()
         link = self.selenium.find_element(By.LINK_TEXT, "Bogey Blues")
-        self.assertIn("/band/42/", link.get_attribute("href"))
+        self.assertIn(f"/band/{self.blues.pk}/", link.get_attribute("href"))
         link.click()
 
         # The field now contains the selected band's id
         self.selenium.switch_to.window(main_window)
-        self.wait_for_value("#id_main_band", "42")
+        self.wait_for_value("#id_main_band", str(self.blues.pk))
 
         # Reopen the popup window and click on another band
         self.selenium.find_element(By.ID, "lookup_id_main_band").click()
         self.wait_for_and_switch_to_popup()
         link = self.selenium.find_element(By.LINK_TEXT, "Green Potatoes")
-        self.assertIn("/band/98/", link.get_attribute("href"))
+        self.assertIn(f"/band/{self.potatoes.pk}/", link.get_attribute("href"))
         link.click()
 
         # The field now contains the other selected band's id
         self.selenium.switch_to.window(main_window)
-        self.wait_for_value("#id_main_band", "98")
+        self.wait_for_value("#id_main_band", str(self.potatoes.pk))
 
     def test_many_to_many(self):
         from selenium.webdriver.common.by import By
@@ -1810,23 +1810,25 @@ class AdminRawIdWidgetSeleniumTests(AdminWidgetSeleniumTestCase):
         self.selenium.find_element(By.ID, "lookup_id_supporting_bands").click()
         self.wait_for_and_switch_to_popup()
         link = self.selenium.find_element(By.LINK_TEXT, "Bogey Blues")
-        self.assertIn("/band/42/", link.get_attribute("href"))
+        self.assertIn(f"/band/{self.blues.pk}/", link.get_attribute("href"))
         link.click()
 
         # The field now contains the selected band's id
         self.selenium.switch_to.window(main_window)
-        self.wait_for_value("#id_supporting_bands", "42")
+        self.wait_for_value("#id_supporting_bands", str(self.blues.pk))
 
         # Reopen the popup window and click on another band
         self.selenium.find_element(By.ID, "lookup_id_supporting_bands").click()
         self.wait_for_and_switch_to_popup()
         link = self.selenium.find_element(By.LINK_TEXT, "Green Potatoes")
-        self.assertIn("/band/98/", link.get_attribute("href"))
+        self.assertIn(f"/band/{self.potatoes.pk}/", link.get_attribute("href"))
         link.click()
 
         # The field now contains the two selected bands' ids
         self.selenium.switch_to.window(main_window)
-        self.wait_for_value("#id_supporting_bands", "42,98")
+        self.wait_for_value(
+            "#id_supporting_bands", f"{self.blues.pk},{self.potatoes.pk}"
+        )
 
 
 class RelatedFieldWidgetSeleniumTests(AdminWidgetSeleniumTestCase):