diff --git a/pkg/ape/chainbase/boltdb.go b/pkg/ape/chainbase/boltdb.go
index c26156c7..a1dfc256 100644
--- a/pkg/ape/chainbase/boltdb.go
+++ b/pkg/ape/chainbase/boltdb.go
@@ -2,7 +2,6 @@ package chainbase
 
 import (
 	"context"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"path/filepath"
@@ -203,7 +202,7 @@ func (cs *boltLocalOverrideStorage) GetOverride(name chain.Name, target policyen
 	}
 
 	c := &chain.Chain{}
-	if err := json.Unmarshal(serializedChain, c); err != nil {
+	if err := c.DecodeBytes(serializedChain); err != nil {
 		return nil, err
 	}
 	return c, nil
@@ -241,7 +240,7 @@ func (cs *boltLocalOverrideStorage) ListOverrides(name chain.Name, target policy
 	chains := make([]*chain.Chain, 0, len(serializedChains))
 	for _, serializedChain = range serializedChains {
 		c := &chain.Chain{}
-		if err := json.Unmarshal(serializedChain, c); err != nil {
+		if err := c.DecodeBytes(serializedChain); err != nil {
 			return nil, err
 		}
 		chains = append(chains, c)