diff --git a/dist/setup/index.js b/dist/setup/index.js
index e4c60af..06dada7 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -5325,8 +5325,11 @@ function cacheDependencies(cache, pythonVersion) {
 function run() {
     var _a;
     return __awaiter(this, void 0, void 0, function* () {
-        if (!((_a = process.env.AGENT_TOOLSDIRECTORY) === null || _a === void 0 ? void 0 : _a.trim())) {
-            process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
+        if (!utils_1.IS_WINDOWS && !((_a = process.env.AGENT_TOOLSDIRECTORY) === null || _a === void 0 ? void 0 : _a.trim())) {
+            if (utils_1.IS_LINUX)
+                process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
+            else
+                process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
         }
         core.debug(`Python is expected to be installed into AGENT_TOOLSDIRECTORY=${process.env['AGENT_TOOLSDIRECTORY']}`);
         process.env['RUNNER_TOOL_CACHE'] = process.env['AGENT_TOOLSDIRECTORY'];
diff --git a/src/setup-python.ts b/src/setup-python.ts
index a3dd060..0b1553b 100644
--- a/src/setup-python.ts
+++ b/src/setup-python.ts
@@ -5,7 +5,7 @@ import * as path from 'path';
 import * as os from 'os';
 import fs from 'fs';
 import {getCacheDistributor} from './cache-distributions/cache-factory';
-import {isCacheFeatureAvailable} from './utils';
+import {isCacheFeatureAvailable, IS_LINUX, IS_WINDOWS} from './utils';
 
 function isPyPyVersion(versionSpec: string) {
   return versionSpec.startsWith('pypy');
@@ -49,8 +49,9 @@ function resolveVersionInput(): string {
 }
 
 async function run() {
-  if (!process.env.AGENT_TOOLSDIRECTORY?.trim()) {
-    process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
+  if (!IS_WINDOWS && !process.env.AGENT_TOOLSDIRECTORY?.trim()) {
+    if (IS_LINUX) process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
+    else process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
   }
   core.debug(
     `Python is expected to be installed into AGENT_TOOLSDIRECTORY=${process.env['AGENT_TOOLSDIRECTORY']}`