diff --git a/README.md b/README.md
index 74870db..4db2f86 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ application.
 
 - 1. Clone this repository `git clone https://github.com/sergeyyarkov/node-docker-example.git .`
 - 2. Configure enviroment variables in `docker-compose.yml` for `postgres` and `nodejs` serivces if you need to
-- 3. Build and run application with `docker compose up --build`
+- 3. Build and run application with `docker-compose up --build`
 
 ## Requirements
 
diff --git a/db.js b/db.js
index 5334ffb..1a09f18 100644
--- a/db.js
+++ b/db.js
@@ -6,12 +6,14 @@ class Database {
   constructor() {
     this.client = new pg.Client({
       connectionString:
-        process.env.NODE_ENV === 'production'
+        process.env.NODE_ENV === 'production' && process.env.DATABASE_URL
           ? process.env.DATABASE_URL
           : connectionString,
-      ssl: {
-        rejectUnauthorized: false,
-      },
+      ssl: process.env.DATABASE_URL
+        ? {
+            rejectUnauthorized: false,
+          }
+        : false,
     });
   }
 }