diff --git a/CHANGELOG.md b/CHANGELOG.md
index 915bb916..e5bfc515 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 7.1.2
+- Removed unused code which caused build issues on some environments
+
 ## 7.1.0
 
 - Throw `ResolutionErrorCode.InvalidDomainAddress` error if domain contains special characters
diff --git a/package.json b/package.json
index 80c934e7..3fe9fb6c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@unstoppabledomains/resolution",
-  "version": "7.1.1",
+  "version": "7.1.2",
   "description": "Domain Resolution for blockchain domains",
   "main": "./build/index.js",
   "directories": {
diff --git a/src/UdApi.ts b/src/UdApi.ts
index e401ff4d..bc0e8471 100644
--- a/src/UdApi.ts
+++ b/src/UdApi.ts
@@ -1,6 +1,5 @@
 import {toBech32Address} from './utils/znsUtils';
 import {ResolutionError, ResolutionErrorCode} from './errors/resolutionError';
-import pckg from './package.json';
 import {isValidTwitterSignature} from './utils/TwitterSignatureValidator';
 import {
   CryptoRecords,
@@ -32,8 +31,7 @@ export default class Udapi extends NamingService {
     this.url = api?.url || 'https://unstoppabledomains.com/api/v1';
     const DefaultUserAgent =
       'cross-fetch/3.1.4 (+https://github.com/lquixada/cross-fetch)';
-    const version = pckg.version;
-    const CustomUserAgent = `${DefaultUserAgent} Resolution/${version}`;
+    const CustomUserAgent = `${DefaultUserAgent} Resolution`;
     this.headers = {'X-user-agent': CustomUserAgent};
     this.network = api?.network || 1;
   }
diff --git a/src/errors/configurationError.ts b/src/errors/configurationError.ts
index 6577f94f..7959df93 100644
--- a/src/errors/configurationError.ts
+++ b/src/errors/configurationError.ts
@@ -16,7 +16,6 @@ export enum ConfigurationErrorCode {
   IncorrectProvider = 'IncorrectProvider',
   UnsupportedNetwork = 'UnsupportedNetwork',
   UnspecifiedUrl = 'UnspecifiedUrl',
-  DependencyMissing = 'DependencyMissing',
   NetworkConfigMissing = 'NetworkConfigMissing',
   CustomNetworkConfigMissing = 'CustomNetworkConfigMissing',
   InvalidConfigurationField = 'InvalidProxyReader',
@@ -36,11 +35,6 @@ const HandlersByCode = {
   [ConfigurationErrorCode.UnspecifiedUrl]: (params: {
     method: ResolutionMethod;
   }) => `Unspecified url in Resolution ${params.method} configuration`,
-  [ConfigurationErrorCode.DependencyMissing]: (params: {
-    dependency: string;
-    version: string;
-  }) =>
-    `Missing dependency for this functionality. Please install ${params.dependency} @ ${params.version} via npm or yarn`,
   [ConfigurationErrorCode.NetworkConfigMissing]: (params: {
     method: ResolutionMethod;
     config: string;
diff --git a/src/package.json b/src/package.json
deleted file mode 120000
index 4e26811d..00000000
--- a/src/package.json
+++ /dev/null
@@ -1 +0,0 @@
-../package.json
\ No newline at end of file
diff --git a/src/tests/requireOrFail.test.ts b/src/tests/requireOrFail.test.ts
deleted file mode 100644
index 2e124dff..00000000
--- a/src/tests/requireOrFail.test.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import {requireOrFail} from '../utils/requireOrFail';
-
-describe('requireOrFail', () => {
-  it('should throw configuration error', () => {
-    expect(() =>
-      requireOrFail('non-existent-module', 'requested-module', '1'),
-    ).toThrowError(
-      'Missing dependency for this functionality. Please install requested-module @ 1 via npm or yarn',
-    );
-  });
-
-  it('should succeed', () => {
-    const module = requireOrFail(
-      '../utils/requireOrFail',
-      'require-or-fail',
-      '1',
-    );
-    expect(module.requireOrFail).toEqual(requireOrFail);
-  });
-});
diff --git a/src/utils/requireOrFail.ts b/src/utils/requireOrFail.ts
deleted file mode 100644
index 137b9ce9..00000000
--- a/src/utils/requireOrFail.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import ConfigurationError, {
-  ConfigurationErrorCode,
-} from '../errors/configurationError';
-
-/**
- * Function tries to require module and throw error if module is not found.
- * @param module - Module name or path
- * @param dependencyName NPM name of the requested module
- * @param allowedVersions Allowed versions of requested module
- * @throws ConfigurationError
- */
-export function requireOrFail(
-  module: string,
-  dependencyName: string,
-  allowedVersions: string,
-): any {
-  try {
-    // eslint-disable-next-line @typescript-eslint/no-var-requires
-    return require(module);
-  } catch (e) {
-    throw new ConfigurationError(ConfigurationErrorCode.DependencyMissing, {
-      dependency: dependencyName,
-      version: allowedVersions,
-    });
-  }
-}