diff --git a/.changeset/happy-paws-applaud.md b/.changeset/happy-paws-applaud.md
new file mode 100644
index 0000000000..6287373d81
--- /dev/null
+++ b/.changeset/happy-paws-applaud.md
@@ -0,0 +1,5 @@
+---
+'@aws-amplify/backend-cli': patch
+---
+
+fix: change 'out' to 'outDir'
diff --git a/packages/cli/src/commands/sandbox/sandbox_command.test.ts b/packages/cli/src/commands/sandbox/sandbox_command.test.ts
index fb86ed41c1..c402b8a2b8 100644
--- a/packages/cli/src/commands/sandbox/sandbox_command.test.ts
+++ b/packages/cli/src/commands/sandbox/sandbox_command.test.ts
@@ -57,7 +57,9 @@ describe('sandbox command', () => {
   });
 
   it('starts sandbox with user provided output directory for client config', async () => {
-    await commandRunner.runCommand('sandbox --out test/location --format js');
+    await commandRunner.runCommand(
+      'sandbox --outDir test/location --format js'
+    );
     assert.equal(sandboxStartMock.mock.callCount(), 1);
     assert.deepStrictEqual(
       sandboxStartMock.mock.calls[0].arguments[0].clientConfigFilePath,
@@ -75,7 +77,7 @@ describe('sandbox command', () => {
     assert.match(output, /--dirToWatch/);
     assert.match(output, /--exclude/);
     assert.match(output, /--format/);
-    assert.match(output, /--out/);
+    assert.match(output, /--outDir/);
   });
 
   it('fails if invalid dirToWatch is provided', async () => {
diff --git a/packages/cli/src/commands/sandbox/sandbox_command.ts b/packages/cli/src/commands/sandbox/sandbox_command.ts
index 6864ee1f5d..f2dae5010f 100644
--- a/packages/cli/src/commands/sandbox/sandbox_command.ts
+++ b/packages/cli/src/commands/sandbox/sandbox_command.ts
@@ -10,7 +10,7 @@ export type SandboxCommandOptions = {
   exclude: string[] | undefined;
   name: string | undefined;
   format: ClientConfigFormat | undefined;
-  out: string | undefined;
+  outDir: string | undefined;
   profile: string | undefined;
 };
 
@@ -57,7 +57,7 @@ export class SandboxCommand
       exclude: args.exclude,
       name: args.name,
       format: args.format,
-      clientConfigFilePath: args.out,
+      clientConfigFilePath: args.outDir,
       profile: args.profile,
     });
     process.once('SIGINT', () => void this.sigIntHandler());
@@ -95,7 +95,7 @@ export class SandboxCommand
           array: false,
           choices: Object.values(ClientConfigFormat),
         })
-        .option('out', {
+        .option('outDir', {
           describe:
             'A path to directory where config is written. If not provided defaults to current process working directory.',
           type: 'string',