diff --git a/src/test/java/com/alibaba/druid/bvt/pool/DruidDataSourceTest4.java b/src/test/java/com/alibaba/druid/bvt/pool/DruidDataSourceTest4.java
index fec7e30cba..1cd1e85ebf 100644
--- a/src/test/java/com/alibaba/druid/bvt/pool/DruidDataSourceTest4.java
+++ b/src/test/java/com/alibaba/druid/bvt/pool/DruidDataSourceTest4.java
@@ -40,7 +40,7 @@ public class DruidDataSourceTest4 extends TestCase {
     }
 
     public void test_getTransactionHistogramRanges_1() {
-        Assert.assertEquals(5, dataSource.getTransactionHistogramRanges().length);
+        Assert.assertEquals(6, dataSource.getTransactionHistogramRanges().length);
     }
 
     public void test_setValidConnectionCheckerClassName() throws Exception {