diff --git a/__tests__/cache-restore.test.ts b/__tests__/cache-restore.test.ts
index df9170ad2..59135452c 100644
--- a/__tests__/cache-restore.test.ts
+++ b/__tests__/cache-restore.test.ts
@@ -135,7 +135,7 @@ describe('cache-restore', () => {
         await restoreCache(packageManager);
         expect(hashFilesSpy).toHaveBeenCalled();
         expect(infoSpy).toHaveBeenCalledWith(
-          `Cache restored from key: node-cache-${platform}-${packageManager}-${fileHash}`
+          `Cache restored from key: node-cache-${platform}-${packageManager}-v2-${fileHash}`
         );
         expect(infoSpy).not.toHaveBeenCalledWith(
           `${packageManager} cache is not found`
diff --git a/dist/setup/index.js b/dist/setup/index.js
index c6d970eaa..eae17a848 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -71152,7 +71152,7 @@ const restoreCache = (packageManager, cacheDependencyPath) => __awaiter(void 0,
     if (!fileHash) {
         throw new Error('Some specified paths were not resolved, unable to cache dependencies.');
     }
-    const primaryKey = `node-cache-${platform}-${packageManager}-${fileHash}`;
+    const primaryKey = `node-cache-${platform}-${packageManager}-v2-${fileHash}`;
     core.debug(`primary key is ${primaryKey}`);
     core.saveState(constants_1.State.CachePrimaryKey, primaryKey);
     const cacheKey = yield cache.restoreCache([cachePath], primaryKey);
diff --git a/src/cache-restore.ts b/src/cache-restore.ts
index c7317270e..5a1daca58 100644
--- a/src/cache-restore.ts
+++ b/src/cache-restore.ts
@@ -37,7 +37,7 @@ export const restoreCache = async (
     );
   }
 
-  const primaryKey = `node-cache-${platform}-${packageManager}-${fileHash}`;
+  const primaryKey = `node-cache-${platform}-${packageManager}-v2-${fileHash}`;
   core.debug(`primary key is ${primaryKey}`);
 
   core.saveState(State.CachePrimaryKey, primaryKey);