diff --git a/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java b/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java
index 36979177..d1ddd88e 100644
--- a/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java
+++ b/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java
@@ -116,7 +116,7 @@ public class AbstractCanalClientTest {
                 connector.connect();
                 connector.subscribe();
                 while (running) {
-                    Message message = connector.getWithoutAck(batchSize, 1000L, TimeUnit.MILLISECONDS); // 获取指定数量的数据
+                    Message message = connector.getWithoutAck(batchSize); // 获取指定数量的数据
                     long batchId = message.getId();
                     int size = message.getEntries().size();
                     if (batchId == -1 || size == 0) {
diff --git a/pom.xml b/pom.xml
index 8b824ab5..59c5bc01 100644
--- a/pom.xml
+++ b/pom.xml
@@ -257,7 +257,7 @@
             <dependency>
                 <groupId>com.alibaba.fastsql</groupId>
                 <artifactId>fastsql</artifactId>
-                <version>2.0.0_preview_186</version>
+                <version>2.0.0_preview_520</version>
             </dependency>
             <dependency>
                 <groupId>com.alibaba</groupId>