diff --git a/apps/news/serializers.py b/apps/news/serializers.py
index 6a88bf08..2c7983d1 100644
--- a/apps/news/serializers.py
+++ b/apps/news/serializers.py
@@ -232,12 +232,13 @@ class NewsBackOfficeBaseSerializer(NewsBaseSerializer):
 
     def create(self, validated_data):
         slugs = validated_data.get('slugs')
-
+        slugs_list = list(map(lambda x: x.lower(), slugs.values()))
+        slugs_set = set(slugs_list)
         if slugs:
             if models.News.objects.filter(
                     slugs__values__contains=list(slugs.values())
-            ).exists():
-                raise serializers.ValidationError({'slugs': _('News with this slug already exists.')})
+            ).exists() or len(slugs_list) != len(slugs_set):
+                raise serializers.ValidationError({'slugs': _('Slug should be unique')})
 
         request = self.context.get("request")
         if request and hasattr(request, "user"):
@@ -248,11 +249,13 @@ class NewsBackOfficeBaseSerializer(NewsBaseSerializer):
 
     def update(self, instance, validated_data):
         slugs = validated_data.get('slugs')
+        slugs_list = list(map(lambda x: x.lower(), slugs.values()))
+        slugs_set = set(slugs_list)
         if slugs:
             if models.News.objects.filter(
                     slugs__values__contains=list(slugs.values())
-            ).exclude(pk=instance.pk).exists():
-                raise serializers.ValidationError({'slugs': _('News with this slug already exists.')})
+            ).exists() or len(slugs_list) != len(slugs_set):
+                raise serializers.ValidationError({'slugs': _('Slug should be unique')})
         return super().update(instance, validated_data)