diff --git a/mariadb.spec b/mariadb.spec
index 7cdbc94..dd75e25 100644
--- a/mariadb.spec
+++ b/mariadb.spec
@@ -15,7 +15,7 @@
 # The last version on which the full testsuite has been run
 # In case of further rebuilds of that version, don't require full testsuite to be run
 # run only "main" suite
-%global last_tested_version 10.5.18
+%global last_tested_version 10.5.20
 # Set to 1 to force run the testsuite even if it was already tested in current version
 %global force_run_testsuite 0
 
@@ -1234,6 +1234,8 @@ export MTR_BUILD_THREAD=$(( $(date +%s) % 1100 ))
     perl ./mysql-test-run.pl $common_testsuite_arguments --skip-ssl --big-test --suite=spider,spider/bg,spider/bugfix,spider/handler --skip-test-list=unstable-tests \
     %if %{ignore_testsuite_result}
       --max-test-fail=999 || :
+    %else
+      --skip-test-list=unstable-tests
     %endif
   # blank line
   fi
diff --git a/rh-skipped-tests-base.list b/rh-skipped-tests-base.list
index 4f9c842..77758e2 100644
--- a/rh-skipped-tests-base.list
+++ b/rh-skipped-tests-base.list
@@ -70,9 +70,10 @@ main.lock_kill                               :
 
 # Fails since 10.5.20
 innodb.innodb_bug51920                      :
+innodb.row_size_error_log_warnings_3        :
 binlog_encryption.rpl_cant_read_event_incident :
-spider/bg.spider_fixes                      :
-spider/bugfix.mdev_29904                    :
+bg.spider_fixes                             :
+bugfix.mdev_29904                          : "[Warning] mariadbd: Can't get hardware address with error 0"
 sys_vars.completion_type_func               :
 rpl.rpl_report_port                         :
 rpl.rpl_reset_slave_fail                    :
diff --git a/rh-skipped-tests-ppc.list b/rh-skipped-tests-ppc.list
index f51ee05..a7e8146 100644
--- a/rh-skipped-tests-ppc.list
+++ b/rh-skipped-tests-ppc.list
@@ -9,3 +9,8 @@ innodb.innodb_defrag_concurrent :
 rpl.rpl_parallel_xa_same_xid : 
 parts.part_supported_sql_func_innodb : 
 parts.partition_alter2_1_1_innodb : 
+
+# Fails since 10.5.20
+innodb.innodb_defrag_concurrent        :
+parts.partition_alter4_innodb          :
+rpl.rpl_parallel_optimistic_xa_lsu_off :