diff --git a/lib/workers/branch/lock-files.js b/lib/workers/branch/lock-files.js
index 833eadaf08bcc99f4dfa2781bd2b575e9a3ca3f3..3bc2377563917e6b50140d2535b3a51ddd95cc1d 100644
--- a/lib/workers/branch/lock-files.js
+++ b/lib/workers/branch/lock-files.js
@@ -302,10 +302,7 @@ async function getUpdatedLockFiles(config) {
   const env =
     config.global && config.global.exposeEnv
       ? process.env
-      : {
-          PATH: process.env.PATH,
-          YARN_CACHE_FOLDER: process.env.YARN_CACHE_FOLDER,
-        };
+      : { PATH: process.env.PATH };
   env.NODE_ENV = 'dev';
 
   for (const lockFileDir of dirs.packageLockFileDirs) {