diff --git a/tests/examples/JDBC/readme.md b/tests/examples/JDBC/readme.md
index 9a017f4feab148cb7c3fd4132360c3075c6573cb..35dfb341d7d62bb283897523f928e04dabea962d 100644
--- a/tests/examples/JDBC/readme.md
+++ b/tests/examples/JDBC/readme.md
@@ -10,4 +10,4 @@
 |  6   |      taosdemo      | This is an internal tool for testing Our JDBC-JNI, JDBC-RESTful, RESTful interfaces |
 
 
-more detail: https://www.taosdata.com/cn//documentation20/connector-java/
\ No newline at end of file
+more detail: https://www.taosdata.com/cn/documentation20/connector/java