diff --git a/config/database.yml b/config/database.yml
index 99ed20078d..20c6760868 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -1,7 +1,7 @@
 defaults: &defaults
   adapter: postgresql
   encoding: unicode
-  pool: 5
+  pool: <%= ENV.fetch('OFN_DB_POOL', 5) %>
   host: <%= ENV.fetch('OFN_DB_HOST', 'localhost') %>
   username: <%= ENV.fetch('OFN_DB_USERNAME', 'ofn') %>
   password: <%= ENV.fetch('OFN_DB_PASSWORD', 'f00d') %>