diff --git a/packages/safe-chain/src/registryProxy/interceptors/npm/modifyNpmInfo.js b/packages/safe-chain/src/registryProxy/interceptors/npm/modifyNpmInfo.js
index acb7d07..ea30d31 100644
--- a/packages/safe-chain/src/registryProxy/interceptors/npm/modifyNpmInfo.js
+++ b/packages/safe-chain/src/registryProxy/interceptors/npm/modifyNpmInfo.js
@@ -1,7 +1,9 @@
 import { getMinimumPackageAgeHours } from "../../../config/settings.js";
 import { ui } from "../../../environment/userInteraction.js";
 
-let hasSuppressedVersions = false;
+const state = {
+  hasSuppressedVersions: false,
+};
 
 /**
  * @param {NodeJS.Dict<string | string[]>} headers
@@ -109,7 +111,7 @@ export function modifyNpmInfoResponse(body, headers) {
  * @param {string} version
  */
 function deleteVersionFromJson(json, version) {
-  hasSuppressedVersions = true;
+  state.hasSuppressedVersions = true;
 
   ui.writeVerbose(
     `Safe-chain: ${version} is newer than ${getMinimumPackageAgeHours()} hours and was removed (minimumPackageAgeInHours setting).`
@@ -168,7 +170,7 @@ function getMostRecentTag(tagList) {
  * @returns {boolean}
  */
 export function getHasSuppressedVersions() {
-  return hasSuppressedVersions;
+  return state.hasSuppressedVersions;
 }
 
 /**
diff --git a/packages/safe-chain/src/registryProxy/interceptors/responseInterceptorBuilder.js b/packages/safe-chain/src/registryProxy/interceptors/responseInterceptorBuilder.js
deleted file mode 100644
index 86d79e5..0000000
--- a/packages/safe-chain/src/registryProxy/interceptors/responseInterceptorBuilder.js
+++ /dev/null
@@ -1,43 +0,0 @@
-/**
- * @typedef {Object} ResponseInterceptorBuilder
- * @property {() => ResponseInterceptor} build
- * @property {(modificationFunc: (body: Buffer) => Buffer) => void} modifyBody
- *
- * @typedef {Object} ResponseInterceptor
- * @property {(buffer: Buffer) => Buffer} modifyBody
- */
-
-/**
- * @returns {ResponseInterceptorBuilder}
- */
-export function createResponseInterceptorBuilder() {
-  /** @type {Array<(body: Buffer) => Buffer>} */
-  let modifyBodyFuncs = [];
-
-  return {
-    modifyBody: (func) => modifyBodyFuncs.push(func),
-    build: () => createResponseInterceptor(modifyBodyFuncs),
-  };
-}
-
-/**
- * @returns {ResponseInterceptor}
- * @param {Array<(body: Buffer) => Buffer>} modifyBodyFuncs
- */
-function createResponseInterceptor(modifyBodyFuncs) {
-  /**
-   * @param {Buffer} body
-   * @returns {Buffer}
-   */
-  function modifyBody(body) {
-    let modifiedBody = body;
-
-    for (var func of modifyBodyFuncs) {
-      modifiedBody = func(body);
-    }
-
-    return modifiedBody;
-  }
-
-  return { modifyBody };
-}