Spamassassin not working after 4.53

[Devon Harding]

Here are my sa-update results:

[root at mars dcc-1.3.31]# sa-update
error: can't verify SHA1 signature
channel: SHA1 verification failed, channel failed

hmm..There are rules in /usr/share/spamassassin, but nothing in
/var/lib/spamassassin/3.001001

[root at mars dcc-1.3.31]# l /var/lib/spamassassin/3.001001/
total 8.0K
drwxr-xr-x 2 root root 4.0K May  2 04:14 updates_spamassassin_org
drwxr-xr-x 2 root root 4.0K May  2 04:14 updates_spamassassin_org.tmp
[root at mars dcc-1.3.31]# l
/var/lib/spamassassin/3.001001/updates_spamassassin_org
total 0
[root at mars dcc-1.3.31]# l
/var/lib/spamassassin/3.001001/updates_spamassassin_org.tmp/
total 4.0K
-rw-r--r-- 1 root root 98 May  3 09:11 MIRRORED.BY

How do I correct this?