From b9b25d45f70a5d94d88496aa4896bf9ed8f49b67 Mon Sep 17 00:00:00 2001
From: Priya Gupta <147705955+priyagupta108@users.noreply.github.com>
Date: Wed, 26 Nov 2025 23:07:55 +0530
Subject: [PATCH] Remove always-auth configuration handling from action (#1436)

* Remove always-auth configuration handling from setup-node

* docs: update README to note always-auth removal

Update README to mention removal of always-auth input

* Clarify removal of 'always-auth' input in README

Updated the description of the 'always-auth' input removal for clarity.
---
 README.md                            |  8 ++--
 __tests__/authutil.test.ts           | 55 +++++++++++-----------------
 __tests__/canary-installer.test.ts   |  4 --
 __tests__/nightly-installer.test.ts  |  6 ---
 __tests__/official-installer.test.ts |  9 -----
 __tests__/rc-installer.test.ts       |  3 --
 action.yml                           |  3 --
 dist/setup/index.js                  | 12 +++---
 docs/advanced-usage.md               |  3 --
 src/authutil.ts                      | 13 ++-----
 src/main.ts                          |  3 +-
 11 files changed, 34 insertions(+), 85 deletions(-)

diff --git a/README.md b/README.md
index 24aa81d..e49c117 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,8 @@ This action provides the following functionality for GitHub Actions users:
 
 - Caching is now automatically enabled for npm projects when either the `devEngines.packageManager` field or the top-level `packageManager` field in `package.json` is set to `npm`. For other package managers, such as Yarn and pnpm, caching is disabled by default and must be configured manually using the `cache` input.
 
+- The `always-auth` input has been removed, as it is deprecated and will no longer be supported in future npm releases. To ensure your workflows continue to run without warnings or errors, please remove any references to `always-auth` from your configuration.  
+
 ## Breaking changes in V5 
 
 - Enabled caching by default with package manager detection if no cache input is provided.
@@ -92,10 +94,6 @@ See [action.yml](action.yml)
     # Default: ''
     scope: ''
 
-    # Set always-auth option in npmrc file.
-    # Default: ''
-    always-auth: ''
-
     # Optional mirror to download binaries from.
     # Artifacts need to match the official Node.js
     # Example:
@@ -271,4 +269,4 @@ Contributions are welcome! See [Contributor's Guide](docs/contributors.md)
 
 ## Code of Conduct
 
-:wave: Be nice. See [our code of conduct](CODE_OF_CONDUCT.md)
\ No newline at end of file
+:wave: Be nice. See [our code of conduct](CODE_OF_CONDUCT.md)
diff --git a/__tests__/authutil.test.ts b/__tests__/authutil.test.ts
index 0676a85..d5f6c19 100644
--- a/__tests__/authutil.test.ts
+++ b/__tests__/authutil.test.ts
@@ -76,115 +76,102 @@ describe('authutil tests', () => {
   }
 
   it('Sets up npmrc for npmjs', async () => {
-    await auth.configAuthentication('https://registry.npmjs.org/', 'false');
+    await auth.configAuthentication('https://registry.npmjs.org/');
 
     expect(fs.statSync(rcFile)).toBeDefined();
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     const rc = readRcFile(rcFile);
     expect(rc['registry']).toBe('https://registry.npmjs.org/');
-    expect(rc['always-auth']).toBe('false');
   });
 
   it('Appends trailing slash to registry', async () => {
-    await auth.configAuthentication('https://registry.npmjs.org', 'false');
+    await auth.configAuthentication('https://registry.npmjs.org');
 
     expect(fs.statSync(rcFile)).toBeDefined();
     const rc = readRcFile(rcFile);
     expect(rc['registry']).toBe('https://registry.npmjs.org/');
-    expect(rc['always-auth']).toBe('false');
   });
 
   it('Configures scoped npm registries', async () => {
     process.env['INPUT_SCOPE'] = 'myScope';
-    await auth.configAuthentication('https://registry.npmjs.org', 'false');
+    await auth.configAuthentication('https://registry.npmjs.org');
 
     expect(fs.statSync(rcFile)).toBeDefined();
     const rc = readRcFile(rcFile);
     expect(rc['@myscope:registry']).toBe('https://registry.npmjs.org/');
-    expect(rc['always-auth']).toBe('false');
   });
 
   it('Automatically configures GPR scope', async () => {
-    await auth.configAuthentication('npm.pkg.github.com', 'false');
+    await auth.configAuthentication('npm.pkg.github.com');
 
     expect(fs.statSync(rcFile)).toBeDefined();
     const rc = readRcFile(rcFile);
     expect(rc['@ownername:registry']).toBe('npm.pkg.github.com/');
-    expect(rc['always-auth']).toBe('false');
-  });
-
-  it('Sets up npmrc for always-auth true', async () => {
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
-    expect(fs.statSync(rcFile)).toBeDefined();
-    const rc = readRcFile(rcFile);
-    expect(rc['registry']).toBe('https://registry.npmjs.org/');
-    expect(rc['always-auth']).toBe('true');
   });
 
   it('is already set the NODE_AUTH_TOKEN export it', async () => {
     process.env.NODE_AUTH_TOKEN = 'foobar';
-    await auth.configAuthentication('npm.pkg.github.com', 'false');
+    await auth.configAuthentication('npm.pkg.github.com');
     expect(fs.statSync(rcFile)).toBeDefined();
     const rc = readRcFile(rcFile);
     expect(rc['@ownername:registry']).toBe('npm.pkg.github.com/');
-    expect(rc['always-auth']).toBe('false');
     expect(process.env.NODE_AUTH_TOKEN).toEqual('foobar');
   });
 
   it('configAuthentication should overwrite non-scoped with non-scoped', async () => {
     fs.writeFileSync(rcFile, 'registry=NNN');
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/`
     );
   });
 
   it('configAuthentication should overwrite only non-scoped', async () => {
     fs.writeFileSync(rcFile, `registry=NNN${os.EOL}@myscope:registry=MMM`);
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `@myscope:registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `@myscope:registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/`
     );
   });
 
   it('configAuthentication should add non-scoped to scoped', async () => {
     fs.writeFileSync(rcFile, '@myscope:registry=NNN');
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `@myscope:registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `@myscope:registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}registry=https://registry.npmjs.org/`
     );
   });
 
   it('configAuthentication should overwrite scoped with scoped', async () => {
     process.env['INPUT_SCOPE'] = 'myscope';
     fs.writeFileSync(rcFile, `@myscope:registry=NNN`);
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/`
     );
   });
 
   it('configAuthentication should overwrite only scoped', async () => {
     process.env['INPUT_SCOPE'] = 'myscope';
     fs.writeFileSync(rcFile, `registry=NNN${os.EOL}@myscope:registry=MMM`);
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/`
     );
   });
 
   it('configAuthentication should add scoped to non-scoped', async () => {
     process.env['INPUT_SCOPE'] = 'myscope';
     fs.writeFileSync(rcFile, `registry=MMM`);
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/`
     );
   });
 
@@ -194,20 +181,20 @@ describe('authutil tests', () => {
       rcFile,
       `@otherscope:registry=NNN${os.EOL}@myscope:registry=MMM`
     );
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `@otherscope:registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `@otherscope:registry=NNN${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/`
     );
   });
 
   it('configAuthentication should add scoped to another scoped', async () => {
     process.env['INPUT_SCOPE'] = 'myscope';
     fs.writeFileSync(rcFile, `@otherscope:registry=MMM`);
-    await auth.configAuthentication('https://registry.npmjs.org/', 'true');
+    await auth.configAuthentication('https://registry.npmjs.org/');
     const contents = fs.readFileSync(rcFile, {encoding: 'utf8'});
     expect(contents).toBe(
-      `@otherscope:registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/${os.EOL}always-auth=true`
+      `@otherscope:registry=MMM${os.EOL}//registry.npmjs.org/:_authToken=\${NODE_AUTH_TOKEN}${os.EOL}@myscope:registry=https://registry.npmjs.org/`
     );
   });
 });
diff --git a/__tests__/canary-installer.test.ts b/__tests__/canary-installer.test.ts
index 4393d7e..93daf17 100644
--- a/__tests__/canary-installer.test.ts
+++ b/__tests__/canary-installer.test.ts
@@ -227,7 +227,6 @@ describe('setup-node', () => {
     const versionSpec = '11.15.0';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     // ... but not in the local cache
@@ -283,7 +282,6 @@ describe('setup-node', () => {
     const versionSpec = '19.0.0-v8-canary';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     findSpy.mockImplementation(() => '');
@@ -324,7 +322,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = version;
       inputs['architecture'] = arch;
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
 
       const expectedUrl = `https://nodejs.org/download/v8-canary/v${version}/node-v${version}-${platform}-${arch}.${fileExtension}`;
@@ -569,7 +566,6 @@ describe('setup-node', () => {
       const versionSpec = 'v20-v8-canary';
 
       inputs['node-version'] = versionSpec;
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
 
       os.platform = 'linux';
diff --git a/__tests__/nightly-installer.test.ts b/__tests__/nightly-installer.test.ts
index eece2c3..b95a42d 100644
--- a/__tests__/nightly-installer.test.ts
+++ b/__tests__/nightly-installer.test.ts
@@ -255,7 +255,6 @@ describe('setup-node', () => {
     const versionSpec = '13.13.1-nightly20200415947ddec091';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     // ... but not in the local cache
@@ -291,7 +290,6 @@ describe('setup-node', () => {
     ];
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     // ... but not in the local cache
@@ -333,7 +331,6 @@ describe('setup-node', () => {
     ];
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     // ... but not in the local cache
@@ -389,7 +386,6 @@ describe('setup-node', () => {
     const versionSpec = '18.0.0-nightly202204180699150267';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     findSpy.mockImplementation(() => '');
@@ -427,7 +423,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = version;
       inputs['architecture'] = arch;
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
 
       const expectedUrl = `https://nodejs.org/download/nightly/v${version}/node-v${version}-${platform}-${arch}.${fileExtension}`;
@@ -473,7 +468,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = version;
       inputs['architecture'] = arch;
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
       inputs['mirror'] = 'https://my-mirror.org';
       inputs['mirror-token'] = 'my-mirror-token';
diff --git a/__tests__/official-installer.test.ts b/__tests__/official-installer.test.ts
index f23183d..fa46c35 100644
--- a/__tests__/official-installer.test.ts
+++ b/__tests__/official-installer.test.ts
@@ -235,7 +235,6 @@ describe('setup-node', () => {
     const resolvedVersion = versionSpec;
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     const expectedUrl =
@@ -290,7 +289,6 @@ describe('setup-node', () => {
     const versionSpec = '11.15.0';
     const mirror = 'https://my_mirror_url';
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
     inputs['mirror'] = mirror;
     inputs['mirror-token'] = 'faketoken';
@@ -327,7 +325,6 @@ describe('setup-node', () => {
     const versionSpec = '11.15.0';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     // ... but not in the local cache
@@ -385,7 +382,6 @@ describe('setup-node', () => {
     const resolvedVersion = versionSpec;
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     findSpy.mockImplementation(() => '');
@@ -405,7 +401,6 @@ describe('setup-node', () => {
     const versionSpec = '11.15.0';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     // ... but not in the local cache
@@ -448,7 +443,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = version;
       inputs['architecture'] = arch;
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
 
       const expectedUrl =
@@ -560,7 +554,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = versionSpec;
       inputs['check-latest'] = 'true';
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
 
       // ... but not in the local cache
@@ -602,7 +595,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = versionSpec;
       inputs['check-latest'] = 'true';
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
 
       // ... but not in the local cache
@@ -882,7 +874,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = version;
       inputs['architecture'] = arch;
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
       inputs['mirror'] = 'https://my_mirror_url';
       inputs['mirror-token'] = 'faketoken';
diff --git a/__tests__/rc-installer.test.ts b/__tests__/rc-installer.test.ts
index 736260a..e159044 100644
--- a/__tests__/rc-installer.test.ts
+++ b/__tests__/rc-installer.test.ts
@@ -194,7 +194,6 @@ describe('setup-node', () => {
     const versionSpec = '13.0.0-rc.0';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     // ... but not in the local cache
@@ -239,7 +238,6 @@ describe('setup-node', () => {
     const versionSpec = '14.7.0-rc.1';
 
     inputs['node-version'] = versionSpec;
-    inputs['always-auth'] = false;
     inputs['token'] = 'faketoken';
 
     findSpy.mockImplementation(() => '');
@@ -268,7 +266,6 @@ describe('setup-node', () => {
 
       inputs['node-version'] = version;
       inputs['architecture'] = arch;
-      inputs['always-auth'] = false;
       inputs['token'] = 'faketoken';
 
       const expectedUrl = `https://nodejs.org/download/rc/v${version}/node-v${version}-${platform}-${arch}.${fileExtension}`;
diff --git a/action.yml b/action.yml
index 73c766b..da74795 100644
--- a/action.yml
+++ b/action.yml
@@ -2,9 +2,6 @@ name: 'Setup Node.js environment'
 description: 'Setup a Node.js environment by adding problem matchers and optionally downloading and adding it to the PATH.'
 author: 'GitHub'
 inputs:
-  always-auth:
-    description: 'Set always-auth in npmrc.'
-    default: 'false'
   node-version:
     description: 'Version Spec of the version to use. Examples: 12.x, 10.15.1, >=10.15.0.'
   node-version-file:
diff --git a/dist/setup/index.js b/dist/setup/index.js
index 69043eb..48d9376 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -98589,15 +98589,15 @@ const os = __importStar(__nccwpck_require__(70857));
 const path = __importStar(__nccwpck_require__(16928));
 const core = __importStar(__nccwpck_require__(37484));
 const github = __importStar(__nccwpck_require__(93228));
-function configAuthentication(registryUrl, alwaysAuth) {
+function configAuthentication(registryUrl) {
     const npmrc = path.resolve(process.env['RUNNER_TEMP'] || process.cwd(), '.npmrc');
     if (!registryUrl.endsWith('/')) {
         registryUrl += '/';
     }
-    writeRegistryToFile(registryUrl, npmrc, alwaysAuth);
+    writeRegistryToFile(registryUrl, npmrc);
 }
 exports.configAuthentication = configAuthentication;
-function writeRegistryToFile(registryUrl, fileLocation, alwaysAuth) {
+function writeRegistryToFile(registryUrl, fileLocation) {
     let scope = core.getInput('scope');
     if (!scope && registryUrl.indexOf('npm.pkg.github.com') > -1) {
         scope = github.context.repo.owner;
@@ -98622,8 +98622,7 @@ function writeRegistryToFile(registryUrl, fileLocation, alwaysAuth) {
     // Remove http: or https: from front of registry.
     const authString = registryUrl.replace(/(^\w+:|^)/, '') + ':_authToken=${NODE_AUTH_TOKEN}';
     const registryString = `${scope}registry=${registryUrl}`;
-    const alwaysAuthString = `always-auth=${alwaysAuth}`;
-    newContents += `${authString}${os.EOL}${registryString}${os.EOL}${alwaysAuthString}`;
+    newContents += `${authString}${os.EOL}${registryString}`;
     fs.writeFileSync(fileLocation, newContents);
     core.exportVariable('NPM_CONFIG_USERCONFIG', fileLocation);
     // Export empty node_auth_token if didn't exist so npm doesn't complain about not being able to find it
@@ -99857,9 +99856,8 @@ function run() {
             }
             yield (0, util_1.printEnvDetailsAndSetOutput)();
             const registryUrl = core.getInput('registry-url');
-            const alwaysAuth = core.getInput('always-auth');
             if (registryUrl) {
-                auth.configAuthentication(registryUrl, alwaysAuth);
+                auth.configAuthentication(registryUrl);
             }
             const cacheDependencyPath = core.getInput('cache-dependency-path');
             if ((0, cache_utils_1.isCacheFeatureAvailable)()) {
diff --git a/docs/advanced-usage.md b/docs/advanced-usage.md
index d238f4a..851e261 100644
--- a/docs/advanced-usage.md
+++ b/docs/advanced-usage.md
@@ -446,9 +446,6 @@ To access private GitHub Packages within the same organization, go to "Manage Ac
 
 Please refer to the [Ensuring workflow access to your package - Configuring a package's access control and visibility](https://docs.github.com/en/packages/learn-github-packages/configuring-a-packages-access-control-and-visibility#ensuring-workflow-access-to-your-package) for more details.
 
-### always-auth input
-The always-auth input sets `always-auth=true` in .npmrc file. With this option set [npm](https://docs.npmjs.com/cli/v6/using-npm/config#always-auth)/yarn sends the authentication credentials when making a request to the registries.
-
 ## Use private mirror
 
 It is possible to use a private mirror hosting Node.js binaries. This mirror must be a full mirror of the official Node.js distribution.
diff --git a/src/authutil.ts b/src/authutil.ts
index 2ce9493..e4b823b 100644
--- a/src/authutil.ts
+++ b/src/authutil.ts
@@ -4,7 +4,7 @@ import * as path from 'path';
 import * as core from '@actions/core';
 import * as github from '@actions/github';
 
-export function configAuthentication(registryUrl: string, alwaysAuth: string) {
+export function configAuthentication(registryUrl: string) {
   const npmrc: string = path.resolve(
     process.env['RUNNER_TEMP'] || process.cwd(),
     '.npmrc'
@@ -13,14 +13,10 @@ export function configAuthentication(registryUrl: string, alwaysAuth: string) {
     registryUrl += '/';
   }
 
-  writeRegistryToFile(registryUrl, npmrc, alwaysAuth);
+  writeRegistryToFile(registryUrl, npmrc);
 }
 
-function writeRegistryToFile(
-  registryUrl: string,
-  fileLocation: string,
-  alwaysAuth: string
-) {
+function writeRegistryToFile(registryUrl: string, fileLocation: string) {
   let scope: string = core.getInput('scope');
   if (!scope && registryUrl.indexOf('npm.pkg.github.com') > -1) {
     scope = github.context.repo.owner;
@@ -47,8 +43,7 @@ function writeRegistryToFile(
   const authString: string =
     registryUrl.replace(/(^\w+:|^)/, '') + ':_authToken=${NODE_AUTH_TOKEN}';
   const registryString = `${scope}registry=${registryUrl}`;
-  const alwaysAuthString = `always-auth=${alwaysAuth}`;
-  newContents += `${authString}${os.EOL}${registryString}${os.EOL}${alwaysAuthString}`;
+  newContents += `${authString}${os.EOL}${registryString}`;
   fs.writeFileSync(fileLocation, newContents);
   core.exportVariable('NPM_CONFIG_USERCONFIG', fileLocation);
   // Export empty node_auth_token if didn't exist so npm doesn't complain about not being able to find it
diff --git a/src/main.ts b/src/main.ts
index 0787115..4afbd29 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -62,9 +62,8 @@ export async function run() {
     await printEnvDetailsAndSetOutput();
 
     const registryUrl: string = core.getInput('registry-url');
-    const alwaysAuth: string = core.getInput('always-auth');
     if (registryUrl) {
-      auth.configAuthentication(registryUrl, alwaysAuth);
+      auth.configAuthentication(registryUrl);
     }
 
     const cacheDependencyPath = core.getInput('cache-dependency-path');