diff --git a/package-lock.json b/package-lock.json
index ef2e7d1..96f8e78 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "license": "UNLICENSED",
       "dependencies": {
         "@nestjs/common": "^11.0.1",
+        "@nestjs/config": "^4.0.3",
         "@nestjs/core": "^11.0.1",
         "@nestjs/mapped-types": "*",
         "@nestjs/platform-express": "^11.0.1",
@@ -2158,6 +2159,33 @@
         }
       }
     },
+    "node_modules/@nestjs/config": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-4.0.3.tgz",
+      "integrity": "sha512-FQ3M3Ohqfl+nHAn5tp7++wUQw0f2nAk+SFKe8EpNRnIifPqvfJP6JQxPKtFLMOHbyer4X646prFG4zSRYEssQQ==",
+      "license": "MIT",
+      "dependencies": {
+        "dotenv": "17.2.3",
+        "dotenv-expand": "12.0.3",
+        "lodash": "4.17.23"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^10.0.0 || ^11.0.0",
+        "rxjs": "^7.1.0"
+      }
+    },
+    "node_modules/@nestjs/config/node_modules/dotenv": {
+      "version": "17.2.3",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.2.3.tgz",
+      "integrity": "sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
     "node_modules/@nestjs/core": {
       "version": "11.1.9",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-11.1.9.tgz",
@@ -5086,6 +5114,21 @@
         "url": "https://dotenvx.com"
       }
     },
+    "node_modules/dotenv-expand": {
+      "version": "12.0.3",
+      "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-12.0.3.tgz",
+      "integrity": "sha512-uc47g4b+4k/M/SeaW1y4OApx+mtLWl92l5LMPP0GNXctZqELk+YGgOPIIC5elYmUH4OuoK3JLhuRUYegeySiFA==",
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "dotenv": "^16.4.5"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
@@ -7801,10 +7844,9 @@
       }
     },
     "node_modules/lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true,
+      "version": "4.17.23",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
+      "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w==",
       "license": "MIT"
     },
     "node_modules/lodash.memoize": {
diff --git a/package.json b/package.json
index e15b85a..67c6642 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "build": "nest build",
     "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
     "start": "nest start",
-    "start:dev": "nest start --watch",
+    "start:dev": "nest start --env-file .env --watch",
     "start:debug": "nest start --debug --watch",
     "start:prod": "node dist/main",
     "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
@@ -21,6 +21,7 @@
   },
   "dependencies": {
     "@nestjs/common": "^11.0.1",
+    "@nestjs/config": "^4.0.3",
     "@nestjs/core": "^11.0.1",
     "@nestjs/mapped-types": "*",
     "@nestjs/platform-express": "^11.0.1",
diff --git a/src/app.module.ts b/src/app.module.ts
index 64b27f2..47e6b85 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -6,18 +6,23 @@ import { TagsModule } from './tags/tags.module';
 import { CategoriesModule } from './categories/categories.module';
 import { SubCategoriesModule } from './sub-categories/sub-categories.module';
 import { ExpensesModule } from './expenses/expenses.module';
+import { ConfigModule, ConfigService } from '@nestjs/config';
 
 @Module({
   imports: [
-    TypeOrmModule.forRoot({
-      synchronize: true,
-      type: 'postgres',
-      host: 'localhost',
-      port: 5432,
-      username: 'common-cents',
-      password: 'CommonCents_123!',
-      database: 'common-cents',
-      autoLoadEntities: true
+    TypeOrmModule.forRootAsync({
+      imports: [ConfigModule],
+      inject: [ConfigService],
+      useFactory: (configService: ConfigService) => ({
+        synchronize: configService.get<boolean>('DB_SYNC') ?? true,
+        type: 'postgres',
+        host: configService.get<string>('DB_HOST') ?? 'localhost',
+        port: configService.get<number>('DB_PORT') ?? 5432,
+        username: configService.get<string>('DB_USER') ?? 'common-cents',
+        password: configService.get<string>('DB_PASS') ?? 'CommonCents_123!',
+        database: configService.get<string>('DB_NAME') ?? 'common-cents',
+        autoLoadEntities: true
+      })
     }),
     MerchantsModule,
     TagsModule,