diff --git a/lib/manager/npm/post-update/index.js b/lib/manager/npm/post-update/index.js
index 97b67d4ba4ebb6c52a6b17e59c26276ea565760a..50ddd41782e8b3ab7b1e2ea03714a768519b2bf4 100644
--- a/lib/manager/npm/post-update/index.js
+++ b/lib/manager/npm/post-update/index.js
@@ -544,11 +544,13 @@ async function getAdditionalFiles(config, packageFiles) {
     } else {
       lockFile = config.yarnLock || 'yarn.lock';
     }
+    const skipInstalls =
+      lockFile === 'npm-shrinkwrap.json' ? false : config.skipInstalls;
     const res = await lerna.generateLockFiles(
       lernaPackageFile.lernaClient,
       upath.join(config.localDir, lernaDir),
       env,
-      config.skipInstalls,
+      skipInstalls,
       config.binarySource
     );
     // istanbul ignore else