diff --git a/scripts/paas_app_wrapper.sh b/scripts/paas_app_wrapper.sh
index 7bb89d759..b48627bf6 100755
--- a/scripts/paas_app_wrapper.sh
+++ b/scripts/paas_app_wrapper.sh
@@ -21,7 +21,7 @@ case $NOTIFY_APP_NAME in
     -Q research-mode-tasks 2> /dev/null
     ;;
   delivery-worker-sender)
-    exec scripts/run_multi_worker_app_paas.sh celery multi start 3 -c 10 -A run_celery.notify_celery --loglevel=INFO \
+    exec scripts/run_multi_worker_app_paas.sh celery multi start 3 -c 4 -A run_celery.notify_celery --loglevel=INFO \
     --logfile=/dev/null --pidfile=/tmp/celery%N.pid -Q send-sms-tasks,send-email-tasks
     ;;
   delivery-worker-periodic)
@@ -33,7 +33,7 @@ case $NOTIFY_APP_NAME in
     -Q reporting-tasks 2> /dev/null
     ;;
   delivery-worker-priority)
-    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=5 \
+    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=4 \
     -Q priority-tasks 2> /dev/null
     ;;
   # Only consume the notify-internal-tasks queue on this app so that Notify messages are processed as a priority
@@ -46,15 +46,15 @@ case $NOTIFY_APP_NAME in
     -Q broadcast-tasks 2> /dev/null
     ;;
   delivery-worker-receipts)
-    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=11 \
+    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=4 \
     -Q ses-callbacks,sms-callbacks 2> /dev/null
     ;;
   delivery-worker-service-callbacks)
-    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=11 \
+    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=4 \
     -Q service-callbacks,service-callbacks-retry 2> /dev/null
     ;;
   delivery-worker-save-api-notifications)
-    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=11 \
+    exec scripts/run_app_paas.sh celery -A run_celery.notify_celery worker --loglevel=INFO --concurrency=4 \
     -Q save-api-email-tasks,save-api-sms-tasks 2> /dev/null
     ;;
   delivery-celery-beat)