diff --git a/.gitignore b/.gitignore
index 8f46f791..68ed418a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,6 @@
 /target/
 /.idea/
 /*.iml
+
+# https://github.com/liquibase/liquibase/issues/2196
+/derby.log
diff --git a/pom.xml b/pom.xml
index 7ef23c3e..fa1cf0ad 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,7 @@
     
         com.powsybl
         powsybl-parent-ws
-        17
+        18
         
     
 
diff --git a/src/main/resources/db/changelog/changesets/changelog_20230810T095237Z.xml b/src/main/resources/db/changelog/changesets/changelog_20230810T095237Z.xml
index 09e904ad..d83ea9f3 100644
--- a/src/main/resources/db/changelog/changesets/changelog_20230810T095237Z.xml
+++ b/src/main/resources/db/changelog/changesets/changelog_20230810T095237Z.xml
@@ -3,7 +3,7 @@
     
         8:69b54d23810d9c683a83059dd23bd9a0
         
     
 
diff --git a/src/test/resources/application-default.yaml b/src/test/resources/application-default.yaml
index ba15e6aa..56e97659 100644
--- a/src/test/resources/application-default.yaml
+++ b/src/test/resources/application-default.yaml
@@ -5,7 +5,7 @@ spring:
       dialect: org.hibernate.dialect.H2Dialect
       hibernate.format_sql: true
     hibernate:
-      #to turn off schema validation that fails (because of clob types) and blocks tests even if the the schema is compatible
+      #to turn off schema validation that fails (because of clob types) and blocks tests even if the schema is compatible
       ddl-auto: none
 logging:
   level:
@@ -17,5 +17,5 @@ logging:
 powsybl-ws:
   database:
     vendor: h2:mem
-    query: ;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
+    query: ;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE;MODE=PostgreSQL;DEFAULT_NULL_ORDERING=HIGH
     hostPort: ":"