diff --git a/build-system/pom.xml b/build-system/pom.xml
index a054bfa1790..8202fc37112 100644
--- a/build-system/pom.xml
+++ b/build-system/pom.xml
@@ -75,7 +75,7 @@
         <jdbc.postgres>9.4.1212.jre7</jdbc.postgres>
         <jdbc.mariadb>1.5.5</jdbc.mariadb>
         <jdbc.mysql>6.0.5</jdbc.mysql>
-        <wicket.version>7.5.0</wicket.version>
+        <wicket.version>7.6.0</wicket.version>
         <groovy.version>2.4.0</groovy.version>
         <activiti-engine.version>5.22.0</activiti-engine.version>
         <activiti-spring.version>5.22.0</activiti-spring.version>
diff --git a/infra/prism/src/main/java/com/evolveum/midpoint/prism/xjc/PropertyArrayList.java b/infra/prism/src/main/java/com/evolveum/midpoint/prism/xjc/PropertyArrayList.java
index e155bfe00d5..68962b49149 100644
--- a/infra/prism/src/main/java/com/evolveum/midpoint/prism/xjc/PropertyArrayList.java
+++ b/infra/prism/src/main/java/com/evolveum/midpoint/prism/xjc/PropertyArrayList.java
@@ -20,6 +20,7 @@
 import com.evolveum.midpoint.prism.PrismPropertyValue;
 import org.apache.commons.lang.Validate;
 
+import java.io.Serializable;
 import java.util.AbstractList;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -34,7 +35,7 @@
  *
  * @author lazyman
  */
-public class PropertyArrayList<T> extends AbstractList<T> {
+public class PropertyArrayList<T> extends AbstractList<T> implements Serializable {
 
     private PrismProperty property;