--- a/src/ldt/ldt/__init__.py	Thu Sep 18 15:35:43 2014 +0200
+++ b/src/ldt/ldt/__init__.py	Tue Sep 30 16:33:30 2014 +0200
@@ -1,6 +1,6 @@
 __all__ = ["VERSION", "get_version", "__version__"]
 
-VERSION = (1, 53, 10, "final", 0)
+VERSION = (1, 53, 11, "final", 0)
 
 
 def get_version():

--- a/src/ldt/ldt/api/ldt/serializers/cinelabserializer.py	Thu Sep 18 15:35:43 2014 +0200
+++ b/src/ldt/ldt/api/ldt/serializers/cinelabserializer.py	Tue Sep 30 16:33:30 2014 +0200
@@ -1,5 +1,4 @@
 from django.conf import settings
-from django.core.serializers import json
 from django.utils import simplejson
 from ldt.ldt_utils.models import Content, Project
 from ldt.ldt_utils.projectserializer import ProjectJsonSerializer
@@ -7,6 +6,7 @@
 from ldt.utils.url import reverse_prefix
 from tastypie.exceptions import NotFound, BadRequest
 from tastypie.serializers import Serializer
+import json
 import lxml.etree
 import math
 
@@ -37,7 +37,7 @@
             if isinstance(data.obj, Project) :
                 ps = ProjectJsonSerializer(data.obj)
                 data = ps.serialize_to_cinelab()
-                return simplejson.dumps(data, cls=json.DjangoJSONEncoder, sort_keys=True, indent=self.json_indent)
+                return json.dumps(data, sort_keys=True, indent=self.json_indent)
         raise NotFound("Project not found")