Changes: The statement did not return a result set.

I am trying to update a table in my ms sqlserver db, below is my code.

Source source = new Source("//SourceConnectionString");
Changes change = new Changes();
change.setRequest(new Request(source, "UPDATE CM_GENERATOR SET GEN_VALUE='3'"));

when i execute above code, i am getting below error

org.assertj.db.exception.AssertJDBException: com.microsoft.sqlserver.jdbc.SQLServerException: The statement did not return a result set.

at org.assertj.db.type.AbstractDbData.load(AbstractDbData.java:136)
at org.assertj.db.type.AbstractDbData.getPksNameList(AbstractDbData.java:255)
at org.assertj.db.type.Changes.getDuplicatedRequest(Changes.java:244)
at org.assertj.db.type.Changes.setRequest(Changes.java:159)

org.assertj
assertj-db
2.0.2