diff --git a/tablib/core.py b/tablib/core.py
index 849e4bc..fb9861a 100644
--- a/tablib/core.py
+++ b/tablib/core.py
@@ -3,13 +3,6 @@
 """ Tablib - core.
 """
 
-import csv
-import cStringIO
-
-import simplejson as json
-import xlwt
-import yaml
-
 from tablib.formats import formats