minor improvements

package.json

@@ -22,13 +22,12 @@
     "connect-redis": "^6.1.3",
     "cookie-parser": "^1.4.6",
     "cors": "^2.8.5",
-    "dotenv": "^16.0.2",
+    "dotenv-flow": "^3.2.0",
     "express": "^4.18.1",
     "express-session": "^1.17.3",
     "express-validator": "^6.14.2",
-    "got": "^12.1.0",
     "helmet": "^5.1.0",
-    "redis": "^4.2.0",
+    "redis": "^4.3.0",
     "winston": "^3.8.1"
   },
   "devDependencies": {