diff --git a/pom.xml b/pom.xml
index 4a7e49a4f..7c901c59c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -556,7 +556,7 @@
             <dependency>
                 <groupId>org.zkoss.zkforge</groupId>
                 <artifactId>timelinez</artifactId>
-                <version>2.3.0_52</version>
+                <version>2.3.1_50</version>
             </dependency>
             <dependency>
                 <groupId>net.sf.ehcache</groupId>