diff --git a/.env b/.env
index ff59b19..fbd996b 100644
--- a/.env
+++ b/.env
@@ -51,3 +51,9 @@ PAYPAL_CLIENT_ID=""
 PAYPAL_CLIENT_SECRET=""
 PAYPAL_WEBHOOK_ID="WEBHOOK_ID"
 ###< App\Gateway\Paypal\PaypalGateway ###
+
+###> symfony/lock ###
+# Choose one of the stores below
+# postgresql+advisory://db_user:db_password@localhost/db_name
+LOCK_DSN=flock
+###< symfony/lock ###
diff --git a/config/packages/lock.yaml b/config/packages/lock.yaml
new file mode 100644
index 0000000..574879f
--- /dev/null
+++ b/config/packages/lock.yaml
@@ -0,0 +1,2 @@
+framework:
+    lock: '%env(LOCK_DSN)%'