diff --git a/angular.json b/angular.json
index d1873773..b1c55ab4 100644
--- a/angular.json
+++ b/angular.json
@@ -51,12 +51,6 @@
                   "maximumWarning": "6kb"
                 }
               ],
-              "fileReplacements": [
-                {
-                  "replace": "src/environments/environment.ts",
-                  "with": "src/environments/environment.prod.ts"
-                }
-              ],
               "outputHashing": "all"
             },
             "development": {
diff --git a/package.json b/package.json
index fc816543..2208eabb 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "test": "ng test app"
   },
   "engines": {
-    "node": "18"
+    "node": "20"
   },
   "dependencies": {
     "@angular/animations": "17.0.3",
diff --git a/src/environments/environment.prod.ts b/src/environments/environment.prod.ts
deleted file mode 100644
index c9669790..00000000
--- a/src/environments/environment.prod.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export const environment = {
-  production: true,
-};
diff --git a/src/environments/environment.ts b/src/environments/environment.ts
deleted file mode 100644
index 85db3caf..00000000
--- a/src/environments/environment.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-// This file can be replaced during build by using the `fileReplacements` array.
-// `ng build ---prod` replaces `environment.ts` with `environment.prod.ts`.
-// The list of file replacements can be found in `angular.json`.
-
-export const environment = {
-  production: false,
-};
-
-/*
- * In development mode, to ignore zone related error stack frames such as
- * `zone.run`, `zoneDelegate.invokeTask` for easier debugging, you can
- * import the following file, but please comment it out in production mode
- * because it will have performance impact when throw error
- */
-// import 'zone.js/plugins/zone-error';  // Included with Angular CLI.