diff --git a/lib/generators/solid_queue/install/templates/config/queue.yml b/lib/generators/solid_queue/install/templates/config/queue.yml
index 15691e9d..58cbe7bf 100644
--- a/lib/generators/solid_queue/install/templates/config/queue.yml
+++ b/lib/generators/solid_queue/install/templates/config/queue.yml
@@ -4,7 +4,7 @@ default: &default
       batch_size: 500
   workers:
     - queues: "*"
-      threads: 3
+      threads: <%= ENV.fetch("RAILS_MAX_THREADS", 3) %>
       processes: <%%= ENV.fetch("JOB_CONCURRENCY", 1) %>
       polling_interval: 0.1