diff --git a/jcpp-infrastructure-stats/src/main/java/sanbing/jcpp/infrastructure/stats/DefaultStatsFactory.java b/jcpp-infrastructure-stats/src/main/java/sanbing/jcpp/infrastructure/stats/DefaultStatsFactory.java
index 8126f85..a8f36d8 100644
--- a/jcpp-infrastructure-stats/src/main/java/sanbing/jcpp/infrastructure/stats/DefaultStatsFactory.java
+++ b/jcpp-infrastructure-stats/src/main/java/sanbing/jcpp/infrastructure/stats/DefaultStatsFactory.java
@@ -33,7 +33,7 @@ public class DefaultStatsFactory implements StatsFactory {
     @Value("${metrics.enabled:true}")
     private Boolean metricsEnabled;
 
-    @Value("${metrics.timer.percentiles:1.0}")
+    @Value("${metrics.timer.percentiles:0.5}")
     private String timerPercentilesStr;
 
     private double[] timerPercentiles;