diff --git a/constant/timeout.go b/constant/timeout.go
index 09038a40..756028ca 100644
--- a/constant/timeout.go
+++ b/constant/timeout.go
@@ -10,5 +10,5 @@ const (
 	STUNTimeout               = 15 * time.Second
 	UDPTimeout                = 5 * time.Minute
 	DefaultURLTestInterval    = 3 * time.Minute
-	DefaultURLTestIdleTimeout = 30 * time.Second
+	DefaultURLTestIdleTimeout = 30 * time.Minute
 )
diff --git a/docs/changelog.md b/docs/changelog.md
index 5fe33740..3f12a642 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -2,7 +2,7 @@
 icon: material/alert-decagram
 ---
 
-#### 1.8.0-alpha.9
+#### 1.8.0-alpha.10
 
 * Add `idle_timeout` for URLTest outbound **1**
 * Fixes and improvements
@@ -11,7 +11,6 @@ icon: material/alert-decagram
 
 When URLTest is idle for a certain period of time, the scheduled delay test will be paused.
 
-
 #### 1.7.2
 
 * Fixes and improvements