diff --git a/.werft/platform-delete-preview-environments-cron.ts b/.werft/platform-delete-preview-environments-cron.ts
index 35779be7271df8..630aea9a680333 100644
--- a/.werft/platform-delete-preview-environments-cron.ts
+++ b/.werft/platform-delete-preview-environments-cron.ts
@@ -375,6 +375,11 @@ async function determineStalePreviewEnvironments(options: {previews: PreviewEnvi
     werft.done(SLICES.CHECKING_FOR_DB_ACTIVITY)
 
     const previewsToDelete = previews.filter((preview: PreviewEnvironment) => {
+        if (!previewNamespacesWithNoDBActivity.has(preview.namespace)){
+            werft.log(SLICES.DETERMINING_STALE_PREVIEW_ENVIRONMENTS, `Considering ${preview.name} (${preview.namespace}) active due to recent DB activity`)
+            return false
+        }
+
         if (!previewNamespaceBasedOnBranches.has(preview.namespace)) {
             werft.log(SLICES.DETERMINING_STALE_PREVIEW_ENVIRONMENTS, `Considering ${preview.name} (${preview.namespace}) stale due to missing branch`)
             return true