diff --git a/intermediate/tcp-client-server-multiplex/pom.xml b/intermediate/tcp-client-server-multiplex/pom.xml
index 790d519d..11e861e8 100644
--- a/intermediate/tcp-client-server-multiplex/pom.xml
+++ b/intermediate/tcp-client-server-multiplex/pom.xml
@@ -160,7 +160,7 @@
       <dependency>
         <groupId>org.springframework.integration</groupId>
         <artifactId>spring-integration-bom</artifactId>
-        <version>5.5.0-M1</version>
+        <version>5.5.0-SNAPSHOT</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>