diff -r 0031027597d8 -r ed6bad3c5eea src/catedit/settings.py
--- a/src/catedit/settings.py	Wed Apr 15 03:55:03 2015 +0200
+++ b/src/catedit/settings.py	Wed Apr 15 03:58:15 2015 +0200
@@ -18,5 +18,5 @@
     CELERY_IGNORE_RESULT = False
     CELERY_TASK_SERIALIZER = 'json'
     CELERY_RESULT_SERIALIZER = 'json'
-    CELERY_ACCEPT_CONTENT = ['pickle', 'json', 'msgpack', 'yaml']
+    CELERY_ACCEPT_CONTENT = ['json', 'msgpack', 'yaml']
     CELERY_DISABLE_RATE_LIMITS = True