diff --git a/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelAutoConfiguration.java b/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelAutoConfiguration.java
index 3deda90f..d2423e00 100644
--- a/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelAutoConfiguration.java
+++ b/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelAutoConfiguration.java
@@ -174,6 +174,7 @@ public class SentinelAutoConfiguration {
 		return new SentinelDataSourceHandler(beanFactory);
 	}
 
+	@ConditionalOnClass(ObjectMapper.class)
 	protected static class SentinelConverterConfiguration {
 
 		private ObjectMapper objectMapper = new ObjectMapper();