diff --git a/models/contract_register/on_log.go b/models/contract_register/on_log.go
index 7712c52a..cb14165e 100644
--- a/models/contract_register/on_log.go
+++ b/models/contract_register/on_log.go
@@ -2,6 +2,7 @@ package contract_register
 
 import (
 	"github.com/Gearbox-protocol/sdk-go/core"
+	"github.com/Gearbox-protocol/sdk-go/log"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
 
@@ -11,6 +12,16 @@ import (
 
 func (mdl *ContractRegister) OnLog(txLog types.Log) {
 	blockNum := int64(txLog.BlockNumber)
+	if core.GetChainId(mdl.Client) != 1337 && (core.Topic("NewPoolAdded(address)") == txLog.Topics[0] ||
+		core.Topic("NewCreditManagerAdded(address)") == txLog.Topics[0]) {
+
+		address := common.HexToAddress(txLog.Topics[1].Hex())
+		version := core.FetchVersionOptimized(address, 0, mdl.Client)
+		log.Info(version)
+		if version.MoreThanEq(core.NewVersion(300)) {
+			return
+		}
+	}
 	switch txLog.Topics[0] {
 	case core.Topic("NewPoolAdded(address)"):
 		address := common.HexToAddress(txLog.Topics[1].Hex()).Hex()