diff --git a/src/openforms/analytics_tools/migrations/0007_alter_analyticstoolsconfiguration_analytics_cookie_consent_group.py b/src/openforms/analytics_tools/migrations/0007_alter_analyticstoolsconfiguration_analytics_cookie_consent_group.py
new file mode 100644
index 0000000000..a848e5f2bf
--- /dev/null
+++ b/src/openforms/analytics_tools/migrations/0007_alter_analyticstoolsconfiguration_analytics_cookie_consent_group.py
@@ -0,0 +1,25 @@
+# Generated by Django 4.2.11 on 2024-04-17 08:38
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("cookie_consent", "0002_auto__add_logitem"),
+        ("analytics_tools", "0006_auto_20240112_1046"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="analyticstoolsconfiguration",
+            name="analytics_cookie_consent_group",
+            field=models.ForeignKey(
+                help_text="The cookie group used for analytical cookies. The analytics scripts are loaded only if this cookie group is accepted by the end-user.",
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                to="cookie_consent.cookiegroup",
+            ),
+        ),
+    ]
diff --git a/src/openforms/analytics_tools/models.py b/src/openforms/analytics_tools/models.py
index 8e90244a9a..0db8217dd7 100644
--- a/src/openforms/analytics_tools/models.py
+++ b/src/openforms/analytics_tools/models.py
@@ -235,7 +235,7 @@ class AnalyticsToolsConfiguration(SingletonModel):
         "cookie_consent.CookieGroup",
         on_delete=models.SET_NULL,
         null=True,
-        blank=True,
+        blank=False,
         help_text=_(
             "The cookie group used for analytical cookies. The analytics scripts are "
             "loaded only if this cookie group is accepted by the end-user."
diff --git a/src/openforms/analytics_tools/tests/test_admin.py b/src/openforms/analytics_tools/tests/test_admin.py
index f2b0e65465..24e56c9f49 100644
--- a/src/openforms/analytics_tools/tests/test_admin.py
+++ b/src/openforms/analytics_tools/tests/test_admin.py
@@ -1,5 +1,6 @@
 from django.urls import reverse
 
+from cookie_consent.models import CookieGroup
 from django_webtest import WebTest
 from maykin_2fa.test import disable_admin_mfa
 
@@ -8,6 +9,13 @@
 
 @disable_admin_mfa()
 class AnalyticsConfigAdminTests(WebTest):
+    @classmethod
+    def setUpTestData(cls) -> None:
+        super().setUpTestData()
+        cls.cookie_group = CookieGroup.objects.create(
+            varname="test group", name="test group"
+        )
+
     def test_urls_cannot_have_trailing_slashes(self):
         superuser = SuperUserFactory.create()
         admin_url = reverse(
@@ -20,6 +28,8 @@ def test_urls_cannot_have_trailing_slashes(self):
                 change_page = self.app.get(admin_url, user=superuser)
                 form = change_page.forms["analyticstoolsconfiguration_form"]
                 form[field] = "https://example.com/"
+                # Options are loaded dynamically, so force value:
+                form["analytics_cookie_consent_group"].force_value(self.cookie_group.pk)
 
                 response = form.submit()
 
@@ -40,6 +50,8 @@ def test_urls_without_trailing_slash_ok(self):
                 change_page = self.app.get(admin_url, user=superuser)
                 form = change_page.forms["analyticstoolsconfiguration_form"]
                 form[field] = "https://example.com"
+                # Options are loaded dynamically, so force value:
+                form["analytics_cookie_consent_group"].force_value(self.cookie_group.pk)
 
                 response = form.submit()