diff --git a/lib/manager/composer/lock-file.js b/lib/manager/composer/artifacts.js
similarity index 97%
rename from lib/manager/composer/lock-file.js
rename to lib/manager/composer/artifacts.js
index 300f6506905ad15bb3da7d900e8310e4b2a387ae..45adef79844a24434426145d8b384534702dd95c 100644
--- a/lib/manager/composer/lock-file.js
+++ b/lib/manager/composer/artifacts.js
@@ -5,16 +5,16 @@ const os = require('os');
 const hostRules = require('../../util/host-rules');
 
 module.exports = {
-  getLockFile,
+  getArtifacts,
 };
 
-async function getLockFile(
+async function getArtifacts(
   packageFileName,
   updatedDeps,
   newPackageFileContent,
   config
 ) {
-  logger.debug(`composer.getLockFile(${packageFileName})`);
+  logger.debug(`composer.getArtifacts(${packageFileName})`);
   process.env.COMPOSER_CACHE_DIR =
     process.env.COMPOSER_CACHE_DIR ||
     upath.join(os.tmpdir(), '/renovate/cache/composer');
diff --git a/lib/manager/composer/index.js b/lib/manager/composer/index.js
index 5d7233f2472d3e7c128fcceb0d15d11f02868449..ec190b633af60392454606caa45f727435e2e35a 100644
--- a/lib/manager/composer/index.js
+++ b/lib/manager/composer/index.js
@@ -1,12 +1,12 @@
 const { extractDependencies } = require('./extract');
 const { updateDependency } = require('../npm/update');
-const { getLockFile } = require('./lock-file');
+const { getArtifacts } = require('./artifacts');
 
 const language = 'php';
 
 module.exports = {
   extractDependencies,
-  getLockFile,
+  getArtifacts,
   language,
   updateDependency,
   // TODO: support this
diff --git a/lib/workers/branch/get-updated.js b/lib/workers/branch/get-updated.js
index a3597965eb5a56a6b16d74a1687d9da9f0035992..7c6c28897142294fdbdc56a7566519b4605dc5ba 100644
--- a/lib/workers/branch/get-updated.js
+++ b/lib/workers/branch/get-updated.js
@@ -56,9 +56,9 @@ async function getUpdatedPackageFiles(config) {
   for (const packageFile of updatedPackageFiles) {
     const manager = packageFileManagers[packageFile.name];
     const updatedDeps = packageFileUpdatedDeps[packageFile.name];
-    const getLockFile = get(manager, 'getLockFile');
-    if (getLockFile) {
-      const updatedLockFile = await getLockFile(
+    const getArtifacts = get(manager, 'getArtifacts');
+    if (getArtifacts) {
+      const updatedLockFile = await getArtifacts(
         packageFile.name,
         updatedDeps,
         packageFile.contents,
diff --git a/test/manager/composer/lock-file.spec.js b/test/manager/composer/artifacts.spec.js
similarity index 77%
rename from test/manager/composer/lock-file.spec.js
rename to test/manager/composer/artifacts.spec.js
index f4291362295dfe5cacfad3dc0db143b95a28bb2b..b96c28bcb635f02182ba279d2451346fefcf03ac 100644
--- a/test/manager/composer/lock-file.spec.js
+++ b/test/manager/composer/artifacts.spec.js
@@ -3,19 +3,19 @@ jest.mock('child-process-promise');
 
 const fs = require('fs-extra');
 const { exec } = require('child-process-promise');
-const composer = require('../../../lib/manager/composer/lock-file');
+const composer = require('../../../lib/manager/composer/artifacts');
 
 const config = {
   localDir: '/tmp/github/some/repo',
 };
 
-describe('.getLockFile()', () => {
+describe('.getArtifacts()', () => {
   beforeEach(() => {
     jest.resetAllMocks();
   });
   it('returns if no composer.lock found', async () => {
     expect(
-      await composer.getLockFile('composer.json', [], '{}', config)
+      await composer.getArtifacts('composer.json', [], '{}', config)
     ).toBeNull();
   });
   it('returns null if unchanged', async () => {
@@ -26,7 +26,7 @@ describe('.getLockFile()', () => {
     });
     fs.readFile = jest.fn(() => 'Current composer.lock');
     expect(
-      await composer.getLockFile('composer.json', [], '{}', config)
+      await composer.getArtifacts('composer.json', [], '{}', config)
     ).toBeNull();
   });
   it('returns updated composer.lock', async () => {
@@ -37,7 +37,7 @@ describe('.getLockFile()', () => {
     });
     fs.readFile = jest.fn(() => 'New composer.lock');
     expect(
-      await composer.getLockFile('composer.json', [], '{}', config)
+      await composer.getArtifacts('composer.json', [], '{}', config)
     ).not.toBeNull();
   });
   it('supports docker mode', async () => {
@@ -48,7 +48,7 @@ describe('.getLockFile()', () => {
     });
     fs.readFile = jest.fn(() => 'New composer.lock');
     expect(
-      await composer.getLockFile('composer.json', [], '{}', {
+      await composer.getArtifacts('composer.json', [], '{}', {
         ...config,
         binarySource: 'docker',
       })
@@ -60,7 +60,7 @@ describe('.getLockFile()', () => {
       throw new Error('not found');
     });
     expect(
-      await composer.getLockFile('composer.json', [], '{}', config)
+      await composer.getArtifacts('composer.json', [], '{}', config)
     ).toBeNull();
   });
 });
diff --git a/test/workers/branch/get-updated.spec.js b/test/workers/branch/get-updated.spec.js
index 859380b14f8e6a7711aae4f619b1e31b67d89a75..8965ef312e22e5cd8697b72ae17658446f992b59 100644
--- a/test/workers/branch/get-updated.spec.js
+++ b/test/workers/branch/get-updated.spec.js
@@ -14,7 +14,7 @@ describe('workers/branch/get-updated', () => {
         upgrades: [],
       };
       composer.updateDependency = jest.fn();
-      composer.getLockFile = jest.fn();
+      composer.getArtifacts = jest.fn();
       npm.updateDependency = jest.fn();
     });
     it('handles empty', async () => {
@@ -49,7 +49,7 @@ describe('workers/branch/get-updated', () => {
         manager: 'composer',
       });
       composer.updateDependency.mockReturnValue('some new content');
-      composer.getLockFile.mockReturnValue({
+      composer.getArtifacts.mockReturnValue({
         name: 'composer.json',
         contents: 'some contents',
       });