How to Flush Single SQL Plan out of Shared Pool

SQL> select ADDRESS, HASH_VALUE from V$SQLAREA where SQL_ID='495ntyn7cd29r';

ADDRESS HASH_VALUE

---------------- ----------

00000005CEBD9BC0 247892279

SQL> exec DBMS_SHARED_POOL.PURGE ('00000005CEBD9BC0,247892279','C');

PL/SQL procedure successfully completed.

SQL> select ADDRESS, HASH_VALUE from V$SQLAREA where SQL_ID='495ntyn7cd29r';

no rows selected