diff --git a/docker/test/stateless/run.sh b/docker/test/stateless/run.sh
index 2c150f0d468..9046a06355b 100755
--- a/docker/test/stateless/run.sh
+++ b/docker/test/stateless/run.sh
@@ -17,4 +17,4 @@ if grep -q -- "--use-skip-list" /usr/bin/clickhouse-test; then
     SKIP_LIST_OPT="--use-skip-list"
 fi
 
-clickhouse-test -j 12 --testname --shard --zookeeper "$SKIP_LIST_OPT" "$ADDITIONAL_OPTIONS" "$SKIP_TESTS_OPTION" 2>&1 | ts '%Y-%m-%d %H:%M:%S' | tee test_output/test_result.txt
+clickhouse-test -j 8 --testname --shard --zookeeper "$SKIP_LIST_OPT" "$ADDITIONAL_OPTIONS" "$SKIP_TESTS_OPTION" 2>&1 | ts '%Y-%m-%d %H:%M:%S' | tee test_output/test_result.txt