diff --git a/src/open_inwoner/components/templates/components/Header/WarningHeader.html b/src/open_inwoner/components/templates/components/Header/WarningHeader.html
index 135f1969cb..00229747e9 100644
--- a/src/open_inwoner/components/templates/components/Header/WarningHeader.html
+++ b/src/open_inwoner/components/templates/components/Header/WarningHeader.html
@@ -10,6 +10,6 @@
 <div class="warning-header">
     <div class="warning-header__container">
         <span class="warning-header__icon">{% icon icon="error_outlined" outlined=True %}</span>
-        <span class="warning-header__text">{{ warning_banner_text }}</span>
+        <span class="warning-header__text">{{ warning_banner_text|safe }}</span>
     </div>
 </div>
diff --git a/src/open_inwoner/conf/base.py b/src/open_inwoner/conf/base.py
index 0e4dc6db2f..5a6ecf50fc 100644
--- a/src/open_inwoner/conf/base.py
+++ b/src/open_inwoner/conf/base.py
@@ -901,6 +901,9 @@
 MAIL_EDITOR_BASE_HOST = BASE_URL
 
 CKEDITOR_CONFIGS = {
+    "default": {
+        "allowedContent": True,
+    },
     "mail_editor": {
         "allowedContent": True,
         "contentsCss": [
@@ -908,7 +911,7 @@
         ],  # Enter the css file used to style the email.
         "height": 600,  # This is optional
         "entities": False,  # This is added because CKEDITOR escapes the ' when you do an if statement
-    }
+    },
 }
 
 #
diff --git a/src/open_inwoner/configurations/migrations/0067_alter_siteconfiguration_warning_banner_text.py b/src/open_inwoner/configurations/migrations/0067_alter_siteconfiguration_warning_banner_text.py
new file mode 100644
index 0000000000..8c57e9223b
--- /dev/null
+++ b/src/open_inwoner/configurations/migrations/0067_alter_siteconfiguration_warning_banner_text.py
@@ -0,0 +1,24 @@
+# Generated by Django 4.2.11 on 2024-05-15 14:44
+
+from django.db import migrations
+
+import ckeditor.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("configurations", "0066_merge_20240405_1100"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="siteconfiguration",
+            name="warning_banner_text",
+            field=ckeditor.fields.RichTextField(
+                blank=True,
+                help_text="Text will be displayed on the warning banner",
+                verbose_name="Warning banner text",
+            ),
+        ),
+    ]
diff --git a/src/open_inwoner/configurations/models.py b/src/open_inwoner/configurations/models.py
index d10605fbd8..8b021a166f 100644
--- a/src/open_inwoner/configurations/models.py
+++ b/src/open_inwoner/configurations/models.py
@@ -8,6 +8,7 @@
 from django.dispatch import receiver
 from django.utils.translation import gettext_lazy as _
 
+import ckeditor.fields as ckeditor_fields
 from colorfield.fields import ColorField
 from django_jsonform.models.fields import ArrayField
 from filer.fields.image import FilerImageField
@@ -68,7 +69,7 @@ class SiteConfiguration(SingletonModel):
         default=False,
         help_text=_("Whether the warning banner should be displayed"),
     )
-    warning_banner_text = models.TextField(
+    warning_banner_text = ckeditor_fields.RichTextField(
         verbose_name=_("Warning banner text"),
         blank=True,
         help_text=_("Text will be displayed on the warning banner"),
diff --git a/src/open_inwoner/scss/components/WarningHeader/WarningHeader.scss b/src/open_inwoner/scss/components/WarningHeader/WarningHeader.scss
index 1983bbdf59..febbc64e48 100644
--- a/src/open_inwoner/scss/components/WarningHeader/WarningHeader.scss
+++ b/src/open_inwoner/scss/components/WarningHeader/WarningHeader.scss
@@ -24,4 +24,10 @@
       max-width: var(--spacing-giant);
     }
   }
+
+  // override paragraph styling from CKEditor
+  p {
+    margin: 0;
+    padding: 0;
+  }
 }