diff --git a/dist/index.js b/dist/index.js
index 5c89cb5..61c4603 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -2039,12 +2039,8 @@ function install(inputVersion, dockerConfigHome) {
 exports.install = install;
 function download(version) {
     return __awaiter(this, void 0, void 0, function* () {
-        version = semver.clean(version) || '';
-        const platform = context.osPlat == 'win32' ? 'windows' : context.osPlat;
-        const ext = context.osPlat == 'win32' ? '.exe' : '';
-        const filename = util.format('buildx-v%s.%s-amd64%s', version, platform, ext);
         const targetFile = context.osPlat == 'win32' ? 'docker-buildx.exe' : 'docker-buildx';
-        const downloadUrl = util.format('https://github.com/docker/buildx/releases/download/v%s/%s', version, filename);
+        const downloadUrl = util.format('https://github.com/docker/buildx/releases/download/v%s/%s', version, yield filename(version));
         let downloadPath;
         try {
             core.info(`⬇️ Downloading ${downloadUrl}...`);
@@ -2057,6 +2053,33 @@ function download(version) {
         return yield tc.cacheFile(downloadPath, targetFile, 'buildx', version);
     });
 }
+function filename(version) {
+    return __awaiter(this, void 0, void 0, function* () {
+        let arch;
+        switch (context.osArch) {
+            case 'x64': {
+                arch = 'amd64';
+                break;
+            }
+            case 'ppc64': {
+                arch = 'ppc64le';
+                break;
+            }
+            case 'arm': {
+                const arm_version = process.config.variables.arm_version;
+                arch = arm_version ? 'arm-v' + arm_version : 'arm';
+                break;
+            }
+            default: {
+                arch = context.osArch;
+                break;
+            }
+        }
+        const platform = context.osPlat == 'win32' ? 'windows' : context.osPlat;
+        const ext = context.osPlat == 'win32' ? '.exe' : '';
+        return util.format('buildx-v%s.%s-%s%s', version, platform, arch, ext);
+    });
+}
 //# sourceMappingURL=buildx.js.map
 
 /***/ }),
@@ -6540,10 +6563,11 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
     });
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.asyncForEach = exports.getInputList = exports.getInputs = exports.osPlat = void 0;
+exports.asyncForEach = exports.getInputList = exports.getInputs = exports.osArch = exports.osPlat = void 0;
 const os = __importStar(__webpack_require__(87));
 const core = __importStar(__webpack_require__(186));
 exports.osPlat = os.platform();
+exports.osArch = os.arch();
 function getInputs() {
     return __awaiter(this, void 0, void 0, function* () {
         return {
diff --git a/src/buildx.ts b/src/buildx.ts
index 7415bc9..23875d6 100644
--- a/src/buildx.ts
+++ b/src/buildx.ts
@@ -92,13 +92,12 @@ export async function install(inputVersion: string, dockerConfigHome: string): P
 }
 
 async function download(version: string): Promise<string> {
-  version = semver.clean(version) || '';
-  const platform: string = context.osPlat == 'win32' ? 'windows' : context.osPlat;
-  const ext: string = context.osPlat == 'win32' ? '.exe' : '';
-  const filename: string = util.format('buildx-v%s.%s-amd64%s', version, platform, ext);
   const targetFile: string = context.osPlat == 'win32' ? 'docker-buildx.exe' : 'docker-buildx';
-
-  const downloadUrl = util.format('https://github.com/docker/buildx/releases/download/v%s/%s', version, filename);
+  const downloadUrl = util.format(
+    'https://github.com/docker/buildx/releases/download/v%s/%s',
+    version,
+    await filename(version)
+  );
   let downloadPath: string;
 
   try {
@@ -111,3 +110,29 @@ async function download(version: string): Promise<string> {
 
   return await tc.cacheFile(downloadPath, targetFile, 'buildx', version);
 }
+
+async function filename(version: string): Promise<string> {
+  let arch: string;
+  switch (context.osArch) {
+    case 'x64': {
+      arch = 'amd64';
+      break;
+    }
+    case 'ppc64': {
+      arch = 'ppc64le';
+      break;
+    }
+    case 'arm': {
+      const arm_version = (process.config.variables as any).arm_version;
+      arch = arm_version ? 'arm-v' + arm_version : 'arm';
+      break;
+    }
+    default: {
+      arch = context.osArch;
+      break;
+    }
+  }
+  const platform: string = context.osPlat == 'win32' ? 'windows' : context.osPlat;
+  const ext: string = context.osPlat == 'win32' ? '.exe' : '';
+  return util.format('buildx-v%s.%s-%s%s', version, platform, arch, ext);
+}
diff --git a/src/context.ts b/src/context.ts
index b8a3d9b..acc57e2 100644
--- a/src/context.ts
+++ b/src/context.ts
@@ -2,6 +2,7 @@ import * as os from 'os';
 import * as core from '@actions/core';
 
 export const osPlat: string = os.platform();
+export const osArch: string = os.arch();
 
 export interface Inputs {
   version: string;