diff --git a/apm-agent-plugins/apm-spring-webflux/apm-spring-webflux-client-plugin/pom.xml b/apm-agent-plugins/apm-spring-webflux/apm-spring-webflux-client-plugin/pom.xml
index 663af9cda9..5225036e68 100644
--- a/apm-agent-plugins/apm-spring-webflux/apm-spring-webflux-client-plugin/pom.xml
+++ b/apm-agent-plugins/apm-spring-webflux/apm-spring-webflux-client-plugin/pom.xml
@@ -53,7 +53,7 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
-            <version>2.0.0-alpha1</version>
+            <version>2.0.0-alpha6</version>
             <scope>test</scope>
         </dependency>
         <dependency>