How do I Persist special characters (like ñ) to Cassandra with Spring Data Cassandra?

We have a usecase where we need to persist and retrieve special character strings into Cassandra. We're using Spring-Data-Cassandra for this. However while persisting Ñisson with Spring Data Cassandra, ?isson is getting persisted. The special character is getting replaced with ? in Cassandra.

I could persist it to Cassandra using CQLSH, so the DB Schema supports these special characters. But SpringBoot is not able to persist it.

I tried adding properties as:-

spring.datasource.connectionProperties=useUnicode=true;characterEncoding=utf-8; 

But nothing seemed to work.

Is it possible to persist it as Ñisson into DB and retrieve it also with Ñisson as the PartitionKey using Spring Data Cassandra?