Version 10 should work though. Someone should try to port the test case from https://github.com/Krzysztof1985/spring-boot3-jpa/tree/springBoot3_JDK17 into the Hibernate testsuite and check if the failure is reproducible with the latest PostgreSQL 10 version. I believe it isn’t reproducible though. Can you run docker pull postgres:10.0 @Krzysztof to make sure you have the latest image?