diff --git a/.test-infra/tools/stale_k8s_workload_cleaner.sh b/.test-infra/tools/stale_k8s_workload_cleaner.sh
index 9ddaf17f2ce8..c167871c8b94 100755
--- a/.test-infra/tools/stale_k8s_workload_cleaner.sh
+++ b/.test-infra/tools/stale_k8s_workload_cleaner.sh
@@ -43,7 +43,10 @@ function should_teardown() {
 gcloud container clusters get-credentials io-datastores --zone us-central1-a --project apache-beam-testing
 
 while read NAME STATUS AGE; do
-  if [[ $NAME =~ ^beam-.+(test|-it) ]] && should_teardown $AGE; then
+  # Regex has temporary workaround to avoid trying to delete beam-performancetests-singlestoreio-* to avoid getting stuck in a terminal state
+  # See https://github.com/apache/beam/pull/33545 for context.
+  # This may be safe to remove if https://cloud.google.com/knowledge/kb/deleted-namespace-remains-in-terminating-status-000004867 has been resolved, just try it before checking in :)
+  if [[ $NAME =~ ^beam-.+(test|-it)(?!s-singlestoreio) ]] && should_teardown $AGE; then
     kubectl delete namespace $NAME
   fi
 done < <( kubectl get namespaces --context=gke_${PROJECT}_${LOCATION}_${CLUSTER} )