diff --git a/pom.xml b/pom.xml
index 9bdcc1443..099971c66 100644
--- a/pom.xml
+++ b/pom.xml
@@ -557,7 +557,7 @@
             <dependency>
                 <groupId>org.zkoss.zkforge</groupId>
                 <artifactId>timeplotz</artifactId>
-                <version>1.1_50</version>
+                <version>1.1_50_1</version>
             </dependency>
             <dependency>
                 <groupId>org.zkoss.zkforge</groupId>