diff --git a/__tests__/cache-restore.test.ts b/__tests__/cache-restore.test.ts
index 90153a40..770497a7 100644
--- a/__tests__/cache-restore.test.ts
+++ b/__tests__/cache-restore.test.ts
@@ -11,7 +11,11 @@ describe('cache-restore', () => {
   if (!process.env.RUNNER_OS) {
     process.env.RUNNER_OS = 'Linux';
   }
+  if (!process.env.RUNNER_ARCH) {
+    process.env.RUNNER_ARCH = 'X64';
+  }
   const platform = process.env.RUNNER_OS;
+  const arch = process.env.RUNNER_ARCH;
   const commonPath = '/some/random/path';
   const npmCachePath = `${commonPath}/npm`;
   const pnpmCachePath = `${commonPath}/pnpm`;
@@ -135,7 +139,7 @@ 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}-${arch}-${packageManager}-${fileHash}`
         );
         expect(infoSpy).not.toHaveBeenCalledWith(
           `${packageManager} cache is not found`
diff --git a/dist/setup/index.js b/dist/setup/index.js
index c4b448b1..4fc551a6 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -92559,6 +92559,7 @@ const core = __importStar(__nccwpck_require__(2186));
 const glob = __importStar(__nccwpck_require__(8090));
 const path_1 = __importDefault(__nccwpck_require__(1017));
 const fs_1 = __importDefault(__nccwpck_require__(7147));
+const os_1 = __importDefault(__nccwpck_require__(2037));
 const constants_1 = __nccwpck_require__(9042);
 const cache_utils_1 = __nccwpck_require__(1678);
 const restoreCache = (packageManager, cacheDependencyPath) => __awaiter(void 0, void 0, void 0, function* () {
@@ -92567,6 +92568,7 @@ const restoreCache = (packageManager, cacheDependencyPath) => __awaiter(void 0,
         throw new Error(`Caching for '${packageManager}' is not supported`);
     }
     const platform = process.env.RUNNER_OS;
+    const arch = os_1.default.arch();
     const cachePaths = yield (0, cache_utils_1.getCacheDirectories)(packageManagerInfo, cacheDependencyPath);
     core.saveState(constants_1.State.CachePaths, cachePaths);
     const lockFilePath = cacheDependencyPath
@@ -92576,7 +92578,7 @@ const restoreCache = (packageManager, cacheDependencyPath) => __awaiter(void 0,
     if (!fileHash) {
         throw new Error('Some specified paths were not resolved, unable to cache dependencies.');
     }
-    const keyPrefix = `node-cache-${platform}-${packageManager}`;
+    const keyPrefix = `node-cache-${platform}-${arch}-${packageManager}`;
     const primaryKey = `${keyPrefix}-${fileHash}`;
     core.debug(`primary key is ${primaryKey}`);
     core.saveState(constants_1.State.CachePrimaryKey, primaryKey);
diff --git a/src/cache-restore.ts b/src/cache-restore.ts
index 3b230970..af12ad83 100644
--- a/src/cache-restore.ts
+++ b/src/cache-restore.ts
@@ -3,6 +3,7 @@ import * as core from '@actions/core';
 import * as glob from '@actions/glob';
 import path from 'path';
 import fs from 'fs';
+import os from 'os';
 
 import {State} from './constants';
 import {
@@ -21,6 +22,7 @@ export const restoreCache = async (
     throw new Error(`Caching for '${packageManager}' is not supported`);
   }
   const platform = process.env.RUNNER_OS;
+  const arch = os.arch();
 
   const cachePaths = await getCacheDirectories(
     packageManagerInfo,
@@ -38,7 +40,7 @@ export const restoreCache = async (
     );
   }
 
-  const keyPrefix = `node-cache-${platform}-${packageManager}`;
+  const keyPrefix = `node-cache-${platform}-${arch}-${packageManager}`;
   const primaryKey = `${keyPrefix}-${fileHash}`;
   core.debug(`primary key is ${primaryKey}`);