diff --git a/setup.py b/setup.py
index 37bcd2a..5ddde26 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@ def read(*paths):
     'jsonschema>=2.5',
     'unicodecsv>=0.14',
     'jsonpointer>=1.10',
-    'tableschema>=1.12.1',
+    'tableschema>=1.20.3',
     'dataflows-tabulator>=1.29',
 ]
 INSTALL_CCHARDET_REQUIRES = [