diff --git a/heatclient/common/template_format.py b/heatclient/common/template_format.py
index 26004491..ff97a8a0 100644
--- a/heatclient/common/template_format.py
+++ b/heatclient/common/template_format.py
@@ -16,9 +16,6 @@
 import json
 import yaml
 
-HEAT_VERSIONS = (u'2012-12-12',)
-CFN_VERSIONS = (u'2010-09-09',)
-
 if hasattr(yaml, 'CSafeLoader'):
     yaml_loader = yaml.CSafeLoader
 else: