diff --git a/config/config.js b/config/config.js
new file mode 100644
index 0000000..3bb20d6
--- /dev/null
+++ b/config/config.js
@@ -0,0 +1,18 @@
+module.exports = {
+  development: {
+    username: 'docker',
+    password: 'docker',
+    database: 'CrmIntegration',
+    port: '5431',
+    dialect: 'postgres',
+    logging: parseInt(process.env.SEQUELIZE_LOGGING) ? console.log : false
+  },
+  test: {
+    "use_env_variable": 'DATABASE_URL',
+    logging: parseInt(process.env.SEQUELIZE_LOGGING) ? console.log : false
+  },
+  production: {
+    "use_env_variable": 'DATABASE_URL',
+    logging: parseInt(process.env.SEQUELIZE_LOGGING) ? console.log : false
+  }
+};
diff --git a/config/config.json b/config/config.json
deleted file mode 100644
index bb7a042..0000000
--- a/config/config.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "development": {
-    "username": "docker",
-    "password": "docker",
-    "database": "CrmIntegration",
-    "port": "5431",
-    "dialect": "postgres",
-    "logging": false
-  },
-  "test": {
-    "use_env_variable": "DATABASE_URL"
-  },
-  "production": {
-    "use_env_variable": "DATABASE_URL"
-  }
-}
diff --git a/environment.env b/environment.env
index b4f3c76..b77df6a 100644
--- a/environment.env
+++ b/environment.env
@@ -22,3 +22,5 @@ UNLOCK_STREAK_REPAIR_AFTER=Number of months without incidents to reset user inci
 BOOKING_CHANGE_PERCENTAGE_CHARGE=Percentage of hourly reate to apply for cancellation-like charges
 
 ALLOWED_BOOKING_CANCELLATION_TIME=Time from creation (in minutes) in which cancellation is not charged
+
+SEQUELIZE_LOGGING=0 - false, 1 - true (console logging)
diff --git a/models/index.js b/models/index.js
index a750de4..9f372c9 100644
--- a/models/index.js
+++ b/models/index.js
@@ -5,7 +5,7 @@ const path = require('path');
 const Sequelize = require('sequelize');
 const basename = path.basename(__filename);
 const env = process.env.NODE_ENV || 'development';
-const config = require(__dirname + '/../config/config.json')[env];
+const config = require(__dirname + '/../config/config.js')[env];
 const db = {};
 
 let sequelize;