diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InvalidResultSetPointerTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InvalidResultSetPointerTest.java
index c2971acd8ec0189e7b1dce795c2d3c5308a6a53d..5ed157439cc9a08cd7747295e60dad5359fdbeb9 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InvalidResultSetPointerTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InvalidResultSetPointerTest.java
@@ -13,7 +13,7 @@ public class InvalidResultSetPointerTest {
     private static final String stbName = "stb";
     private static final String tbName = "tb";
     private static Connection connection;
-    private static int numOfSTb = 300000;
+    private static int numOfSTb = 30000;
     private static int numOfTb = 3;
     private static int numOfThreads = 1;