diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 64e7dcb..86076da 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -50,7 +50,8 @@ jobs:
           - 21.0.2
           - 21.1.2
           - 22.0.5
-          - 23.0.1
+          - 23.0.7
+          - 24.0.0
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4
diff --git a/README.md b/README.md
index 83218e6..e4a020c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Keycloak Metrics
 
-Provides metrics for Keycloak user/admin events and user/client/session count. Tested on Keycloak [21-23](.github/workflows/pr.yaml#L50-L53).
+Provides metrics for Keycloak user/admin events and user/client/session count. Tested on Keycloak [21-24](.github/workflows/pr.yaml#L50-L54).
 
 [![Apache License, Version 2.0, January 2004](https://img.shields.io/github/license/kokuwaio/keycloak-event-metrics.svg?label=License)](http://www.apache.org/licenses/)
 [![Maven Central](https://img.shields.io/maven-central/v/io.kokuwa.keycloak/keycloak-event-metrics.svg?label=Maven%20Central)](https://central.sonatype.com/search?namespace=io.kokuwa.keycloak&q=keycloak-event-metrics)
diff --git a/pom.xml b/pom.xml
index e0ef498..cb7b775 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,7 +69,7 @@
 		<!-- ============================== Libaries ============================= -->
 		<!-- ===================================================================== -->
 
-		<version.org.keycloak>23.0.7</version.org.keycloak>
+		<version.org.keycloak>24.0.0</version.org.keycloak>
 		<version.org.keycloak.test>${version.org.keycloak}</version.org.keycloak.test>
 		<version.org.testcontainers>1.18.3</version.org.testcontainers>
 
diff --git a/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakClient.java b/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakClient.java
index 9f66fbd..029ffde 100644
--- a/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakClient.java
+++ b/src/test/java/io/kokuwa/keycloak/metrics/junit/KeycloakClient.java
@@ -80,6 +80,8 @@ public class KeycloakClient {
 							"emailVerified", true,
 							"email", username + "@example.org",
 							"username", username,
+							"firstName", username,
+							"lastName", username,
 							"credentials", List.of(Map.of(
 									"type", CredentialRepresentation.PASSWORD,
 									"value", password,