diff --git a/src/dexorder/contract/dexorder.py b/src/dexorder/contract/dexorder.py
index ef6a5fb..04a3531 100644
--- a/src/dexorder/contract/dexorder.py
+++ b/src/dexorder/contract/dexorder.py
@@ -21,8 +21,8 @@ chain_info = version['chainInfo']
 
 for chain_id, info in chain_info.items():
     chain_id = int(chain_id)
-    _factory[chain_id] = info['factory']
-    _dexorder[chain_id] = info['dexorder']
+    _factory[chain_id] = ContractProxy(info['factory'], 'VaultFactory')
+    _dexorder[chain_id] = ContractProxy(info['dexorder'], 'Dexorder')
     _vault_init_code_hash[chain_id] = to_bytes(hexstr=info['vaultInitCodeHash'])
 
 def get_by_chain(d):