diff --git a/dns/index.go b/dns/index.go
index b3d1b5e253..9365edc34d 100644
--- a/dns/index.go
+++ b/dns/index.go
@@ -43,7 +43,7 @@ func (d Domain) String() string {
 func RunTimer() {
 	for {
 		RunOnce()
-		time.Sleep(time.Minute * time.Duration(5))
+		time.Sleep(time.Minute * time.Duration(15))
 	}
 }