diff --git a/proxy/vmess/inbound/inbound.go b/proxy/vmess/inbound/inbound.go
index 5acda0809..cd0a451e9 100644
--- a/proxy/vmess/inbound/inbound.go
+++ b/proxy/vmess/inbound/inbound.go
@@ -380,11 +380,7 @@ func init() {
 		return common.CreateObject(ctx, fullConfig)
 	}))
 
-	defaultFlagValue := "NOT_DEFINED_AT_ALL"
-
-	if time.Now().Year() >= 2022 {
-		defaultFlagValue = "true_by_default_2022"
-	}
+	defaultFlagValue := "true_by_default_2022"
 
 	isAeadForced := platform.NewEnvFlag("v2ray.vmess.aead.forced").GetValue(func() string { return defaultFlagValue })
 	if isAeadForced == "true" {