diff --git a/gvafile/gvafile/settings/base.py b/gvafile/gvafile/settings/base.py
index ef96035..5fd8143 100644
--- a/gvafile/gvafile/settings/base.py
+++ b/gvafile/gvafile/settings/base.py
@@ -283,5 +283,6 @@ CELERY_RESULT_BACKEND = 'amqp'
 CELERY_RESULT_PERSISTENT = True
 CELERY_TASK_RESULT_EXPIRES = None
 CELERY_ACCEPT_CONTENT = ['yaml', 'json']
+CELERY_TASK_SERIALIZER = 'json'
 CELERY_RESULT_SERIALIZER = 'json'
 ########## END CELERY CONFIGURATION