diff --git a/config.py b/config.py
index 6bd46e4..6fe5508 100644
--- a/config.py
+++ b/config.py
@@ -7,9 +7,15 @@ load_dotenv(os.path.join(basedir, '.env'))
 
 class Config(object):
     SECRET_KEY = os.environ.get('SECRET_KEY') or 'you-will-never-guess'
+
     SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
         'sqlite:///' + os.path.join(basedir, 'app.db')
+        
+    if SQLALCHEMY_DATABASE_URI.startswith('postgres://'):
+        SQLALCHEMY_DATABASE_URI = SQLALCHEMY_DATABASE_URI.replace('postgres://', 'postgresql://', 1)
+
     SQLALCHEMY_TRACK_MODIFICATIONS = False
+
     LOG_TO_STDOUT = os.environ.get('LOG_TO_STDOUT')
     MAIL_SERVER = os.environ.get('MAIL_SERVER')
     MAIL_PORT = int(os.environ.get('MAIL_PORT') or 25)