diff --git a/bin/clean-cache.js b/bin/clean-cache.js
index b72b60bf595b2f8bf6c29295334630e8033a196d..ae8c65fc1de823cf842ba82a1bd9914eebc9b11f 100644
--- a/bin/clean-cache.js
+++ b/bin/clean-cache.js
@@ -2,6 +2,6 @@ const fs = require('fs-extra');
 const os = require('os');
 
 (async () => {
-  await fs.remove(os.tmpdir() + '/renovate-cache-changelog');
+  await fs.remove(os.tmpdir() + '/renovate-cache-changelog-v2');
   await fs.remove(os.tmpdir() + '/renovate-npm-cache');
 })();
diff --git a/lib/workers/pr/changelog/source-cache.js b/lib/workers/pr/changelog/source-cache.js
index 7ea96c517d1606083c85b1c0e923a52c76142bf9..499e220ac3bac62015ac3c1cc2612fef48fc6d53 100644
--- a/lib/workers/pr/changelog/source-cache.js
+++ b/lib/workers/pr/changelog/source-cache.js
@@ -9,7 +9,7 @@ module.exports = {
 
 function getCache({ depName, fromVersion, toVersion }) {
   const tmpdir = process.env.RENOVATE_TMPDIR || os.tmpdir();
-  const cachePath = tmpdir + '/renovate-cache-changelog';
+  const cachePath = tmpdir + '/renovate-cache-changelog-v2';
   const cacheKey = `${depName}-${fromVersion}-${toVersion}`;
   return [cachePath, cacheKey];
 }