diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigPropertyAutoRefresher.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigPropertyAutoRefresher.java
index ff3be4443..71c13c8e3 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigPropertyAutoRefresher.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigPropertyAutoRefresher.java
@@ -117,7 +117,7 @@ public abstract class PolarisConfigPropertyAutoRefresher implements ApplicationL
 					try {
 						if (changedKey.startsWith("logging.level") && changedKey.length() >= 14) {
 							String loggerName = changedKey.substring(14);
-							String newValue = configPropertyChangeInfo.getNewValue();
+							String newValue = (String) configPropertyChangeInfo.getNewValue();
 							LOGGER.info("[SCT Config] set logging.level loggerName:{}, newValue:{}", loggerName, newValue);
 							PolarisConfigLoggerContext.setLevel(loggerName, newValue);
 						}
diff --git a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/listener/ConfigChangeListenerTest.java b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/listener/ConfigChangeListenerTest.java
index 24ad04d76..562fe9d1b 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/listener/ConfigChangeListenerTest.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/listener/ConfigChangeListenerTest.java
@@ -18,16 +18,14 @@
 
 package com.tencent.cloud.polaris.config.listener;
 
+import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.DEFINED_PORT;
+
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
-import com.google.common.collect.Sets;
-import com.tencent.cloud.polaris.config.annotation.PolarisConfigKVFileChangeListener;
-import com.tencent.polaris.configuration.api.core.ConfigPropertyChangeInfo;
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
@@ -38,7 +36,9 @@ import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.stereotype.Component;
 import org.springframework.test.context.junit.jupiter.SpringExtension;
 
-import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.DEFINED_PORT;
+import com.google.common.collect.Sets;
+import com.tencent.cloud.polaris.config.annotation.PolarisConfigKVFileChangeListener;
+import com.tencent.polaris.configuration.api.core.ConfigPropertyChangeInfo;
 
 /**
  * Integration testing for change listener.
@@ -104,7 +104,7 @@ public class ConfigChangeListenerTest {
 			@PolarisConfigKVFileChangeListener(interestedKeys = {"timeout"})
 			public void configChangedListener(ConfigChangeEvent event) {
 				ConfigPropertyChangeInfo changeInfo = event.getChange("timeout");
-				timeout = Integer.parseInt(changeInfo.getNewValue());
+				timeout = Integer.parseInt((String)changeInfo.getNewValue());
 				changeCnt++;
 				hits.countDown();
 			}
@@ -112,7 +112,7 @@ public class ConfigChangeListenerTest {
 			@PolarisConfigKVFileChangeListener(interestedKeyPrefixes = {"timeout"})
 			public void configChangedListener2(ConfigChangeEvent event) {
 				ConfigPropertyChangeInfo changeInfo = event.getChange("timeout");
-				timeout = Integer.parseInt(changeInfo.getNewValue());
+				timeout = Integer.parseInt((String)changeInfo.getNewValue());
 				changeCnt++;
 				hits.countDown();
 			}