diff --git a/src/test/java/de/ids_mannheim/korap/dao/VirtualCorpusDaoTest.java b/src/test/java/de/ids_mannheim/korap/dao/VirtualCorpusDaoTest.java
index 9e94ca5..d5773a9 100644
--- a/src/test/java/de/ids_mannheim/korap/dao/VirtualCorpusDaoTest.java
+++ b/src/test/java/de/ids_mannheim/korap/dao/VirtualCorpusDaoTest.java
@@ -73,9 +73,14 @@
                             "experimental", false, "system", null, null);
                 });
 
-        assertEquals("Converting `org.hibernate.exception.GenericJDBCException` "
-                        + "to JPA `PersistenceException` : could not execute statement",
-            exception.getMessage());
+        String msg = exception.getMessage();
+        // Hibernate 7 exposes provider/DB-specific message; assert key parts
+        org.junit.jupiter.api.Assertions.assertTrue(
+                msg.contains("could not execute statement"),
+                () -> "Unexpected message: " + msg);
+        org.junit.jupiter.api.Assertions.assertTrue(
+                msg.contains("UNIQUE") || msg.contains("constraint"),
+                () -> "Expected unique constraint error in message: " + msg);
     }
 
     @Test
diff --git a/src/test/resources/test-config.xml b/src/test/resources/test-config.xml
index b5b676b..05311db 100644
--- a/src/test/resources/test-config.xml
+++ b/src/test/resources/test-config.xml
@@ -147,11 +147,8 @@
 				<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
 				<prop key="hibernate.cache.use_query_cache">${hibernate.cache.use_query_cache}</prop>
 				<prop key="hibernate.cache.use_second_level_cache">${hibernate.cache.use_second_level_cache}
-				</prop>
-				<prop key="hibernate.cache.provider_class">${hibernate.cache.provider}</prop>
-				<prop key="hibernate.cache.region.factory_class">${hibernate.cache.region.factory}</prop>
-				<prop key="hibernate.jdbc.time_zone">${hibernate.jdbc.time_zone}</prop>
-				<!-- <prop key="net.sf.ehcache.configurationResourceName">classpath:ehcache.xml</prop> -->
+				</prop>				
+				<prop key="hibernate.jdbc.time_zone">${hibernate.jdbc.time_zone}</prop>				
 			</props>
 		</property>
 	</bean>
diff --git a/src/test/resources/test-hibernate.properties b/src/test/resources/test-hibernate.properties
index e394a88..63697a7 100644
--- a/src/test/resources/test-hibernate.properties
+++ b/src/test/resources/test-hibernate.properties
@@ -3,6 +3,6 @@
 hibernate.show_sql=false
 hibernate.cache.use_query_cache=false
 hibernate.cache.use_second_level_cache=false
-hibernate.cache.provider=org.hibernate.cache.EhCacheProvider
-hibernate.cache.region.factory=org.hibernate.cache.ehcache.EhCacheRegionFactory
-hibernate.jdbc.time_zone=UTC
\ No newline at end of file
+hibernate.jdbc.time_zone=UTC
+hibernate.cache.provider=
+hibernate.cache.region.factory=