# SQLServer UnsupportedClassVersionError **URL:** \ **Category:** Ignition\ **Created:** [May 26, 2022, 2:49pm UTC](https://forum.inductiveautomation.com/t/sqlserver-unsupportedclassversionerror/60073 "2022-05-26T14:49:04Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [May 26, 2022, 3:01pm UTC](https://forum.inductiveautomation.com/t/sqlserver-unsupportedclassversionerror/60073/2 "2022-05-26T15:01:51Z")
You have to select a version of the JDBC driver that works with your JRE. See this topic: > [@SQL Server Connection Faulted](https://forum.inductiveautomation.com/t/sql-server-connection-faulted/46393/9): > > You might need to downgrade. The case I encountered was a SQL Server 2008, which isn’t supported past driver 6.2. See this compatibility chart: I think with the correct driver, I didn’t need the extra connection properties, just the java.security changes. YMMV, of course. Also, running an old and unsupported Ignition version means you sometimes cannot upgrade associated components, like the DB you are using. ~~The OP in this very old topic was using v7.5. You don't say what version you are using, but I suspect you should have started a new topic and provided more information.~~ _Thanks, Kevin_ --- _[View the full topic](https://forum.inductiveautomation.com/t/sqlserver-unsupportedclassversionerror/60073)._