diff --git a/__tests__/os.test.ts b/__tests__/os.test.ts
index 32c73f16..0ecb952d 100644
--- a/__tests__/os.test.ts
+++ b/__tests__/os.test.ts
@@ -1,7 +1,15 @@
 import * as os from "../src/os";
+import getArch from "../src/arch";
 
 jest.mock("getos");
 
+jest.mock("../src/arch", () => {
+  return {
+    __esModule: true,
+    default: jest.fn(() => "x64"),
+  };
+});
+
 const setSystem = require("getos").__setSystem;
 
 describe("os resolver", () => {
diff --git a/__tests__/swift-versions.test.ts b/__tests__/swift-versions.test.ts
index 73fce4e9..e635aae6 100644
--- a/__tests__/swift-versions.test.ts
+++ b/__tests__/swift-versions.test.ts
@@ -1,9 +1,26 @@
 import { OS, System } from "../src/os";
 import * as versions from "../src/swift-versions";
 
-const macOS: System = { os: OS.MacOS, version: "latest", name: "macOS" };
-const ubuntu: System = { os: OS.Ubuntu, version: "latest", name: "Ubuntu" };
-const windows: System = { os: OS.Windows, version: "latest", name: "Windows" };
+const macOS: System = {
+  os: OS.MacOS,
+  version: "latest",
+  name: "macOS",
+  arch: "arm64",
+};
+
+const ubuntu: System = {
+  os: OS.Ubuntu,
+  version: "latest",
+  name: "Ubuntu",
+  arch: "x64",
+};
+
+const windows: System = {
+  os: OS.Windows,
+  version: "latest",
+  name: "Windows",
+  arch: "x64",
+};
 
 describe("swift version resolver", () => {
   it("identifies X.X.X versions", async () => {
diff --git a/__tests__/visual-studio.test.ts b/__tests__/visual-studio.test.ts
index 3dce72c4..259d5aec 100644
--- a/__tests__/visual-studio.test.ts
+++ b/__tests__/visual-studio.test.ts
@@ -12,7 +12,12 @@ jest.mock("fs", () => {
   };
 });
 
-const windows: System = { os: OS.Windows, version: "latest", name: "Windows" };
+const windows: System = {
+  os: OS.Windows,
+  version: "latest",
+  name: "Windows",
+  arch: "x64",
+};
 
 describe("visual studio resolver", () => {
   const env = process.env;
diff --git a/dist/index.js b/dist/index.js
index 3d011b75..7f091d5d 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1,6 +1,20 @@
 /******/ (() => { // webpackBootstrap
 /******/ 	var __webpack_modules__ = ({
 
+/***/ 209:
+/***/ ((__unused_webpack_module, exports) => {
+
+"use strict";
+
+Object.defineProperty(exports, "__esModule", ({ value: true }));
+function getArch() {
+    return process.arch;
+}
+exports["default"] = getArch;
+
+
+/***/ }),
+
 /***/ 951:
 /***/ ((__unused_webpack_module, exports, __nccwpck_require__) => {
 
@@ -372,6 +386,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
 Object.defineProperty(exports, "__esModule", ({ value: true }));
 exports.getSystem = exports.OS = void 0;
 const getos_1 = __importDefault(__nccwpck_require__(6068));
+const arch_1 = __importDefault(__nccwpck_require__(209));
 var OS;
 (function (OS) {
     OS[OS["MacOS"] = 0] = "MacOS";
@@ -395,23 +410,41 @@ async function getSystem() {
             os ? resolve(os) : reject(error || "No OS detected");
         });
     });
+    const arch = (0, arch_1.default)();
     let system;
     switch (detectedSystem.os) {
         case "darwin":
-            system = { os: OS.MacOS, version: "latest", name: "macOS" };
+            system = {
+                os: OS.MacOS,
+                version: "latest",
+                name: "macOS",
+                arch,
+            };
             break;
         case "linux":
             if (detectedSystem.dist !== "Ubuntu") {
-                throw new Error(`"${detectedSystem.dist}" is not a supported linux distribution`);
+                throw new Error(`"${detectedSystem.dist}" is not a supported Linux distribution`);
+            }
+            if (arch !== "x64" && arch !== "arm64") {
+                throw new Error(`${arch} is not a supported architecture for Linux`);
             }
             system = {
                 os: OS.Ubuntu,
                 version: detectedSystem.release,
                 name: "Ubuntu",
+                arch,
             };
             break;
         case "win32":
-            system = { os: OS.Windows, version: "latest", name: "Windows" };
+            if (arch !== "x64") {
+                throw new Error(`${arch} is not a supported architecture for Windows`);
+            }
+            system = {
+                os: OS.Windows,
+                version: "latest",
+                name: "Windows",
+                arch,
+            };
             break;
         default:
             throw new Error(`"${detectedSystem.os}" is not a supported platform`);
@@ -542,7 +575,11 @@ function swiftPackage(version, system) {
             break;
         case os_1.OS.Ubuntu:
             platform = `ubuntu${system.version.replace(/\D/g, "")}`;
+            if (system.arch === "arm64")
+                platform += "-aarch64";
             archiveName = `swift-${version}-RELEASE-ubuntu${system.version}`;
+            if (system.arch === "arm64")
+                archiveName += "-aarch64";
             archiveFile = `${archiveName}.tar.gz`;
             break;
         case os_1.OS.Windows:
diff --git a/src/arch.ts b/src/arch.ts
new file mode 100644
index 00000000..3a317d48
--- /dev/null
+++ b/src/arch.ts
@@ -0,0 +1,3 @@
+export default function getArch(): string {
+  return process.arch;
+}
diff --git a/src/os.ts b/src/os.ts
index 3dec1b49..85c4d063 100644
--- a/src/os.ts
+++ b/src/os.ts
@@ -1,4 +1,5 @@
 import getos from "getos";
+import getArch from "./arch";
 
 export enum OS {
   MacOS,
@@ -22,6 +23,7 @@ export interface System {
   os: OS;
   version: string;
   name: string;
+  arch: string;
 }
 
 export async function getSystem(): Promise<System> {
@@ -30,27 +32,45 @@ export async function getSystem(): Promise<System> {
       os ? resolve(os) : reject(error || "No OS detected");
     });
   });
+  const arch = getArch();
 
   let system: System;
 
   switch (detectedSystem.os) {
     case "darwin":
-      system = { os: OS.MacOS, version: "latest", name: "macOS" };
+      system = {
+        os: OS.MacOS,
+        version: "latest",
+        name: "macOS",
+        arch,
+      };
       break;
     case "linux":
       if (detectedSystem.dist !== "Ubuntu") {
         throw new Error(
-          `"${detectedSystem.dist}" is not a supported linux distribution`
+          `"${detectedSystem.dist}" is not a supported Linux distribution`
         );
       }
+      if (arch !== "x64" && arch !== "arm64") {
+        throw new Error(`${arch} is not a supported architecture for Linux`);
+      }
       system = {
         os: OS.Ubuntu,
         version: detectedSystem.release,
         name: "Ubuntu",
+        arch,
       };
       break;
     case "win32":
-      system = { os: OS.Windows, version: "latest", name: "Windows" };
+      if (arch !== "x64") {
+        throw new Error(`${arch} is not a supported architecture for Windows`);
+      }
+      system = {
+        os: OS.Windows,
+        version: "latest",
+        name: "Windows",
+        arch,
+      };
       break;
     default:
       throw new Error(`"${detectedSystem.os}" is not a supported platform`);
diff --git a/src/swift-versions.ts b/src/swift-versions.ts
index ef50b0cc..d5c26b79 100644
--- a/src/swift-versions.ts
+++ b/src/swift-versions.ts
@@ -97,7 +97,9 @@ export function swiftPackage(version: string, system: System): Package {
       break;
     case OS.Ubuntu:
       platform = `ubuntu${system.version.replace(/\D/g, "")}`;
+      if (system.arch === "arm64") platform += "-aarch64";
       archiveName = `swift-${version}-RELEASE-ubuntu${system.version}`;
+      if (system.arch === "arm64") archiveName += "-aarch64";
       archiveFile = `${archiveName}.tar.gz`;
       break;
     case OS.Windows: