diff --git a/arkindex/documents/serializers/light.py b/arkindex/documents/serializers/light.py
index f151e8ae453ac3c0b410e25ce1dffbee66b20692..e686640b4301ad465ee55c7e79210d718f69b555 100644
--- a/arkindex/documents/serializers/light.py
+++ b/arkindex/documents/serializers/light.py
@@ -1,6 +1,6 @@
 import markdown
 from django.db.models import Max
-from html_sanitizer import Sanitizer
+from html_sanitizer.django import get_sanitizer
 from rest_framework import serializers
 from rest_framework.exceptions import APIException, ValidationError
 
@@ -106,7 +106,7 @@ class MetaDataLightSerializer(serializers.ModelSerializer):
     def to_representation(self, instance):
         # The value must be HTML
         if instance.type == MetaType.Markdown:
-            sanitizer = Sanitizer()
+            sanitizer = get_sanitizer()
             html = markdown.markdown(instance.value)
             instance.value = sanitizer.sanitize(html)
         return super().to_representation(instance)
diff --git a/arkindex/project/settings.py b/arkindex/project/settings.py
index d8e9835a81d27659ed0b3fb9d4ecaf02b811dc4d..4569c2ab8e8c37afeb6815a63fc7194f3d8bde37 100644
--- a/arkindex/project/settings.py
+++ b/arkindex/project/settings.py
@@ -274,6 +274,19 @@ SPECTACULAR_SETTINGS = {
     ]
 }
 
+# Sanitizer config
+HTML_SANITIZERS = {
+    'default': {
+        'tags': {
+            'a', 'h1', 'h2', 'h3', 'strong', 'em', 'p',
+            'ul', 'ol', 'li', 'br', 'sub', 'sup', 'hr',
+            'table', 'thead', 'tbody', 'tr', 'th', 'td'
+        },
+        'empty': {'hr', 'a', 'br', 'th'},
+        'is_mergeable': lambda e1, e2: False,
+    },
+}
+
 SEARCH_FILTER_MAX_TERMS = 10
 
 # Elastic search config