diff --git a/engine/src/test/java/org/hibernate/validator/testutils/ListAppender.java b/engine/src/test/java/org/hibernate/validator/testutils/ListAppender.java
index ada1639bb7..940485deda 100644
--- a/engine/src/test/java/org/hibernate/validator/testutils/ListAppender.java
+++ b/engine/src/test/java/org/hibernate/validator/testutils/ListAppender.java
@@ -20,17 +20,14 @@
  */
 public class ListAppender extends AbstractAppender {
 	final List<LogEvent> events = Collections.synchronizedList( new ArrayList<>() );
-	private final List<String> messages = Collections.synchronizedList( new ArrayList() );
-	final List<byte[]> data = Collections.synchronizedList( new ArrayList() );
 
 	public ListAppender(final String name) {
 		super( name, null, null, true, Property.EMPTY_ARRAY );
 	}
 
-
 	public void append(final LogEvent event) {
-		if ( event instanceof MutableLogEvent ) {
-			this.events.add( ( (MutableLogEvent) event ).createMemento() );
+		if ( event instanceof MutableLogEvent e ) {
+			this.events.add( e.toImmutable() );
 		}
 		else {
 			this.events.add( event );
diff --git a/pom.xml b/pom.xml
index 1f3c15e81d..5373d2cf4b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -158,7 +158,7 @@
         <version.com.fasterxml.classmate>1.7.0</version.com.fasterxml.classmate>
         <version.joda-time>2.14.0</version.joda-time>
         <version.org.slf4j>2.0.17</version.org.slf4j>
-        <version.org.apache.logging.log4j>2.24.3</version.org.apache.logging.log4j>
+        <version.org.apache.logging.log4j>2.25.0</version.org.apache.logging.log4j>
 
         <!--
             These dependencies are used for integration tests with WildFly.
@@ -199,11 +199,11 @@
         <version.io.rest-assured>5.5.5</version.io.rest-assured>
         <version.org.apache.groovy>4.0.27</version.org.apache.groovy>
         <version.com.google.guava>33.4.8-jre</version.com.google.guava>
-        <version.org.springframework.spring-expression>6.2.7</version.org.springframework.spring-expression>
+        <version.org.springframework.spring-expression>6.2.8</version.org.springframework.spring-expression>
         <version.org.jboss.arquillian.container.arquillian-weld-embedded>4.0.0.Final</version.org.jboss.arquillian.container.arquillian-weld-embedded>
-        <version.com.fasterxml.jackson.core.jackson-databind>2.19.0</version.com.fasterxml.jackson.core.jackson-databind>
-        <version.com.fasterxml.jackson.core.jackson-annotations>2.19.0</version.com.fasterxml.jackson.core.jackson-annotations>
-        <version.net.bytebuddy.byte-buddy>1.17.5</version.net.bytebuddy.byte-buddy>
+        <version.com.fasterxml.jackson.core.jackson-databind>2.19.1</version.com.fasterxml.jackson.core.jackson-databind>
+        <version.com.fasterxml.jackson.core.jackson-annotations>2.19.1</version.com.fasterxml.jackson.core.jackson-annotations>
+        <version.net.bytebuddy.byte-buddy>1.17.6</version.net.bytebuddy.byte-buddy>
 
         <!-- OSGi dependencies -->
         <version.org.apache.karaf>4.2.0</version.org.apache.karaf>