diff --git a/taiga/projects/issues/serializers.py b/taiga/projects/issues/serializers.py
index 01526a57..c6810a93 100644
--- a/taiga/projects/issues/serializers.py
+++ b/taiga/projects/issues/serializers.py
@@ -46,7 +46,7 @@ class IssueSerializer(WatchersValidator, VoteResourceSerializerMixin, EditableWa
 
     class Meta:
         model = models.Issue
-        read_only_fields = ('id', 'ref', 'created_date', 'modified_date')
+        read_only_fields = ('id', 'ref', 'created_date', 'modified_date', 'owner')
 
     def get_comment(self, obj):
         # NOTE: This method and field is necessary to historical comments work
diff --git a/taiga/projects/tasks/serializers.py b/taiga/projects/tasks/serializers.py
index 5bf022f7..3f159379 100644
--- a/taiga/projects/tasks/serializers.py
+++ b/taiga/projects/tasks/serializers.py
@@ -50,7 +50,7 @@ class TaskSerializer(WatchersValidator, VoteResourceSerializerMixin, EditableWat
 
     class Meta:
         model = models.Task
-        read_only_fields = ('id', 'ref', 'created_date', 'modified_date')
+        read_only_fields = ('id', 'ref', 'created_date', 'modified_date', 'owner')
 
     def get_comment(self, obj):
         return ""
diff --git a/taiga/projects/userstories/serializers.py b/taiga/projects/userstories/serializers.py
index dea31987..0931cae8 100644
--- a/taiga/projects/userstories/serializers.py
+++ b/taiga/projects/userstories/serializers.py
@@ -67,7 +67,7 @@ class UserStorySerializer(WatchersValidator, VoteResourceSerializerMixin, Editab
     class Meta:
         model = models.UserStory
         depth = 0
-        read_only_fields = ('created_date', 'modified_date')
+        read_only_fields = ('created_date', 'modified_date', 'owner')
 
     def get_total_points(self, obj):
         return obj.get_total_points()
diff --git a/taiga/projects/wiki/serializers.py b/taiga/projects/wiki/serializers.py
index 45f91c45..08b58336 100644
--- a/taiga/projects/wiki/serializers.py
+++ b/taiga/projects/wiki/serializers.py
@@ -30,7 +30,7 @@ class WikiPageSerializer(WatchersValidator, WatchedResourceModelSerializer, seri
 
     class Meta:
         model = models.WikiPage
-        read_only_fields = ('modified_date', 'created_date')
+        read_only_fields = ('modified_date', 'created_date', 'owner')
 
     def get_html(self, obj):
         return mdrender(obj.project, obj.content)