diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22a8edf0..c721c14f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change log
 
+## 3.5.5 (2024-03-03)
+
+- fix: initialize the singleton of the Config only once
+
 ## 3.5.4 (2024-03-03)
 
 - optimize: lazy load the plugin config file
diff --git a/README.md b/README.md
index 15365f5c..5bae2585 100644
--- a/README.md
+++ b/README.md
@@ -434,7 +434,7 @@ See [boilerplate](https://github.com/webdiscus/webpack-html-scss-boilerplate)
    - [integrityHashes](#hook-integrity-hashes)
 1. [Plugin options](#plugin-options)
    - [test](#option-test) (RegEx to handle matching templates)
-   - [entry](#option-entry) (entry as a list of template files)
+   - [entry](#option-entry) (template as entry point)
      - [entry as an array](#option-entry-array) (array notation)
      - [entry as an object](#option-entry-object) (object notation)
      - [entry as a path](#option-entry-path) (find templates in a directory recursively)
diff --git a/package.json b/package.json
index df54561d..1259bc61 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "html-bundler-webpack-plugin",
-  "version": "3.5.4",
+  "version": "3.5.5",
   "description": "HTML bundler plugin for webpack handles a template as an entry point, extracts CSS and JS from their sources referenced in HTML, supports template engines like Eta, EJS, Handlebars, Nunjucks.",
   "keywords": [
     "html",
@@ -80,6 +80,10 @@
       "types": "./plugins/favicons-bundler-plugin/index.d.ts",
       "require": "./plugins/favicons-bundler-plugin/index.js",
       "import": "./plugins/favicons-bundler-plugin/index.js"
+    },
+    "./Config": {
+      "require": "./src/Common/Config.js",
+      "import": "./src/Common/Config.js"
     }
   },
   "engines": {
diff --git a/src/Common/Config.js b/src/Common/Config.js
index f9ac4758..451047fa 100644
--- a/src/Common/Config.js
+++ b/src/Common/Config.js
@@ -13,10 +13,13 @@ class Config {
   };
 
   static init(file) {
-    this.#configFile = path.isAbsolute(file)
-      ? require.resolve(file)
-      : // path relative to `./src/Common`
-        require.resolve(path.join('../', file));
+    // initialize only once
+    if (!this.#configFile) {
+      this.#configFile = path.isAbsolute(file)
+        ? require.resolve(file)
+        : // path relative to `./src/Common`
+          require.resolve(path.join('../', file));
+    }
   }
 
   static get() {