diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index 989a0dd7..de67f76d 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -51,7 +51,7 @@ services:
       "
     deploy:
       <<: *deploy
-      replicas: 3
+      replicas: ${WEB_REPLICAS:-3}
 
   default_worker:
     <<: *default-app
@@ -72,6 +72,7 @@ services:
       "
     deploy:
       <<: *deploy
+      replicas: ${DICOM_WORKER_REPLICAS:-3}
 
   receiver:
     <<: *default-app
diff --git a/example.env b/example.env
index d0c8e049..fca78ea3 100644
--- a/example.env
+++ b/example.env
@@ -80,6 +80,10 @@ CALLING_AE_TITLE="ADIT1DEV"
 # The AE title where the receiver is listening for incoming files.
 RECEIVER_AE_TITLE="ADIT1DEV"
 
+# Replicas of the services that can be scaled (production only).
+WEB_REPLICAS=5
+DICOM_WORKER_REPLICAS=3
+
 # The directory where download folders are mounted.
 MOUNT_DIR="/mnt"