diff --git a/.github/workflows/indexnow-notify.yml b/.github/workflows/indexnow-notify.yml
index d9cdb4a8..b6ba36a8 100644
--- a/.github/workflows/indexnow-notify.yml
+++ b/.github/workflows/indexnow-notify.yml
@@ -22,6 +22,6 @@ jobs:
             }")
           echo "IndexNow response: HTTP $RESPONSE"
           echo "Submitted $(echo "$URLS" | wc -l) URLs"
-          if [ "$RESPONSE" -ne 200 ]; then
+          if [ "$RESPONSE" -lt 200 ] || [ "$RESPONSE" -ge 300 ]; then
             echo "::warning::IndexNow returned HTTP $RESPONSE"
           fi