diff --git a/pkg/core/ssl-applicator/acme-dns01/providers/ucloud-udnr/internal/lego.go b/pkg/core/ssl-applicator/acme-dns01/providers/ucloud-udnr/internal/lego.go
index 9dd1b572..907d27fd 100644
--- a/pkg/core/ssl-applicator/acme-dns01/providers/ucloud-udnr/internal/lego.go
+++ b/pkg/core/ssl-applicator/acme-dns01/providers/ucloud-udnr/internal/lego.go
@@ -47,7 +47,7 @@ type DNSProvider struct {
 
 func NewDefaultConfig() *Config {
 	return &Config{
-		TTL:                int32(env.GetOrDefaultInt(EnvTTL, 300)),
+		TTL:                int32(env.GetOrDefaultInt(EnvTTL, 600)),
 		PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, 2*time.Minute),
 		PollingInterval:    env.GetOrDefaultSecond(EnvPollingInterval, dns01.DefaultPollingInterval),
 		HTTPTimeout:        env.GetOrDefaultSecond(EnvHTTPTimeout, 30*time.Second),