diff --git a/orm/hibernate-orm-6/pom.xml b/orm/hibernate-orm-6/pom.xml
index fe7d189c..1493ff83 100644
--- a/orm/hibernate-orm-6/pom.xml
+++ b/orm/hibernate-orm-6/pom.xml
@@ -8,7 +8,8 @@
 	<name>Hibernate ORM 6 Test Case Template</name>
 
 	<properties>
-		<version.com.h2database>2.3.232</version.com.h2database>
+		<version.org.testcontainers>1.16.3</version.org.testcontainers>
+		<version.pgjdbc>42.7.4</version.pgjdbc>
 		<version.junit-jupiter>5.11.0</version.junit-jupiter>
 		<version.org.hibernate.orm>6.6.0.Final</version.org.hibernate.orm>
 		<version.org.assertj.assertj-core>3.26.3</version.org.assertj.assertj-core>
@@ -30,6 +31,13 @@
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>
+			<dependency>
+				<groupId>org.testcontainers</groupId>
+				<artifactId>testcontainers-bom</artifactId>
+				<version>1.20.1</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
 		</dependencies>
 	</dependencyManagement>
 
@@ -43,10 +51,17 @@
 			<artifactId>hibernate-testing</artifactId>
 		</dependency>
 
+
+		<dependency>
+			<groupId>org.postgresql</groupId>
+			<artifactId>postgresql</artifactId>
+			<version>${version.pgjdbc}</version>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-			<version>${version.com.h2database}</version>
+			<groupId>org.testcontainers</groupId>
+			<artifactId>postgresql</artifactId>
+			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
diff --git a/orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/ORMUnitTestCase.java b/orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/ORMUnitTestCase.java
index eefb7df4..efecb322 100644
--- a/orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/ORMUnitTestCase.java
+++ b/orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/ORMUnitTestCase.java
@@ -15,8 +15,12 @@
  */
 package org.hibernate.bugs;
 
-import org.hibernate.cfg.AvailableSettings;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.List;
 
+import org.hibernate.bugs.model.Currency;
+import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.testing.orm.junit.DomainModel;
 import org.hibernate.testing.orm.junit.ServiceRegistry;
 import org.hibernate.testing.orm.junit.SessionFactory;
@@ -35,36 +39,28 @@
  */
 @DomainModel(
 		annotatedClasses = {
-				// Add your entities here.
-				// Foo.class,
-				// Bar.class
-		},
-		// If you use *.hbm.xml mappings, instead of annotations, add the mappings here.
-		xmlMappings = {
-				// "org/hibernate/test/Foo.hbm.xml",
-				// "org/hibernate/test/Bar.hbm.xml"
+				Currency.class
 		}
 )
 @ServiceRegistry(
-		// Add in any settings that are specific to your test.  See resources/hibernate.properties for the defaults.
 		settings = {
-				// For your own convenience to see generated queries:
 				@Setting(name = AvailableSettings.SHOW_SQL, value = "true"),
-				@Setting(name = AvailableSettings.FORMAT_SQL, value = "true"),
-				// @Setting( name = AvailableSettings.GENERATE_STATISTICS, value = "true" ),
-
-				// Add your own settings that are a part of your quarkus configuration:
-				// @Setting( name = AvailableSettings.SOME_CONFIGURATION_PROPERTY, value = "SOME_VALUE" ),
 		}
 )
-@SessionFactory
+@SessionFactory(exportSchema = false)
 class ORMUnitTestCase {
 
-	// Add your tests, using standard JUnit 5.
 	@Test
-	void hhh123Test(SessionFactoryScope scope) throws Exception {
+	void hhh18618Test(SessionFactoryScope scope) throws Exception {
 		scope.inTransaction( session -> {
-			// Do stuff...
+			List<Integer> numbers = List.of(840, 978);
+			List<Currency> currencies = session.createQuery(
+							"FROM Currency "
+							+ "WHERE array_contains(:numbers, number)",
+							Currency.class)
+							.setParameter("numbers", numbers.toArray(Integer[]::new))
+							.getResultList();
+			assertEquals(2, currencies.size());
 		} );
 	}
 }
diff --git a/orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/model/Currency.java b/orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/model/Currency.java
new file mode 100644
index 00000000..7facf910
--- /dev/null
+++ b/orm/hibernate-orm-6/src/test/java/org/hibernate/bugs/model/Currency.java
@@ -0,0 +1,22 @@
+package org.hibernate.bugs.model;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+@Entity
+public class Currency {
+
+	@Id
+	@Column(name = "num", nullable = false, updatable = false)
+	private Integer number;
+
+	public Integer getNumber() {
+		return number;
+	}
+
+	public void setNumber(Integer number) {
+		this.number = number;
+	}
+
+}
diff --git a/orm/hibernate-orm-6/src/test/resources/hibernate.properties b/orm/hibernate-orm-6/src/test/resources/hibernate.properties
index 9c894d7b..d1b5e759 100644
--- a/orm/hibernate-orm-6/src/test/resources/hibernate.properties
+++ b/orm/hibernate-orm-6/src/test/resources/hibernate.properties
@@ -5,12 +5,12 @@
 # See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 #
 
-hibernate.dialect org.hibernate.dialect.H2Dialect
-hibernate.connection.driver_class org.h2.Driver
+hibernate.dialect org.hibernate.dialect.PostgreSQLDialect
+hibernate.connection.driver_class org.testcontainers.jdbc.ContainerDatabaseDriver
 #hibernate.connection.url jdbc:h2:mem:db1;DB_CLOSE_DELAY=-1;MVCC=TRUE
-hibernate.connection.url jdbc:h2:mem:db1;DB_CLOSE_DELAY=-1
-hibernate.connection.username sa
-hibernate.connection.password 
+hibernate.connection.url jdbc:tc:postgresql:9.6.8:///databasename?TC_INITSCRIPT=file:src/test/resources/postgres_array.sql
+hibernate.connection.username test
+hibernate.connection.password test
 
 hibernate.connection.pool_size 5
 
diff --git a/orm/hibernate-orm-6/src/test/resources/postgres_array.sql b/orm/hibernate-orm-6/src/test/resources/postgres_array.sql
new file mode 100644
index 00000000..10faed13
--- /dev/null
+++ b/orm/hibernate-orm-6/src/test/resources/postgres_array.sql
@@ -0,0 +1,11 @@
+CREATE TABLE currency (
+  num  NUMERIC(3) NOT NULL,
+  CONSTRAINT pk_currency PRIMARY KEY(num)
+);
+
+INSERT INTO currency(num)
+     VALUES (392),
+            (756),
+            (826),
+            (840),
+            (978);