diff --git a/packages/zcli-apps/src/lib/package.test.ts b/packages/zcli-apps/src/lib/package.test.ts
index 68ee0dd5..d6fab452 100644
--- a/packages/zcli-apps/src/lib/package.test.ts
+++ b/packages/zcli-apps/src/lib/package.test.ts
@@ -7,6 +7,7 @@ describe('package', () => {
   describe('validatePkg', () => {
     test
       .stub(fs, 'pathExistsSync', () => true)
+      .stub(fs, 'readFile', () => Promise.resolve('file content'))
       .stub(request, 'requestAPI', () => Promise.resolve({ status: 200 }))
       .it('should return true if package is valid', async () => {
         expect(await validatePkg('./app-path')).to.equal(true)
@@ -14,19 +15,25 @@ describe('package', () => {
 
     test
       .stub(fs, 'pathExistsSync', () => true)
+      .stub(fs, 'readFile', () => Promise.resolve('file content'))
       .stub(request, 'requestAPI', () => Promise.resolve({ status: 400, data: { description: 'invalid location' } }))
-      .do(async () => {
-        await validatePkg('./app-path')
+      .it('should throw if package has validation errors', async () => {
+        try {
+          await validatePkg('./app-path')
+        } catch (error: any) {
+          expect(error.message).to.equal('invalid location')
+        }
       })
-      .catch('invalid location')
-      .it('should throw if package has validation errors')
 
     test
       .stub(fs, 'pathExistsSync', () => false)
-      .do(async () => {
-        await validatePkg('./bad-path')
+      .stub(fs, 'readFile', () => Promise.reject())
+      .it('should throw if app path is invalid', async () => {
+        try {
+          await validatePkg('./bad-path')
+        } catch (error: any) {
+          expect(error.message).to.equal('Package not found at ./bad-path')
+        }
       })
-      .catch('Package not found at ./bad-path')
-      .it('should throw if app path is invalid')
   })
 })
diff --git a/packages/zcli-apps/src/lib/package.ts b/packages/zcli-apps/src/lib/package.ts
index 8243fc89..bd0d087e 100644
--- a/packages/zcli-apps/src/lib/package.ts
+++ b/packages/zcli-apps/src/lib/package.ts
@@ -1,49 +1,56 @@
 import * as path from 'path'
 import * as fs from 'fs-extra'
-import * as FormData from 'form-data'
 import { request } from '@zendesk/zcli-core'
 import { CLIError } from '@oclif/core/lib/errors'
 import * as archiver from 'archiver'
 import { validateAppPath } from './appPath'
+import * as FormData from 'form-data'
 
 const getDateTimeFileName = () => (new Date()).toISOString().replace(/[^0-9]/g, '')
 
-export const createAppPkg = async (
+export const createAppPkg = (
   relativeAppPath: string,
   pkgDir = 'tmp'
-) => {
-  const appPath = path.resolve(relativeAppPath)
-  validateAppPath(appPath)
+): Promise<string> => {
+  return new Promise((resolve, reject) => {
+    const appPath = path.resolve(relativeAppPath)
+    validateAppPath(appPath)
 
-  const pkgName = `app-${getDateTimeFileName()}`
-  const pkgPath = `${appPath}/${pkgDir}/${pkgName}.zip`
+    const pkgName = `app-${getDateTimeFileName()}`
+    const pkgPath = `${appPath}/${pkgDir}/${pkgName}.zip`
 
-  await fs.ensureDir(`${appPath}/${pkgDir}`)
-  const output = fs.createWriteStream(pkgPath)
-  const archive = archiver('zip')
+    fs.ensureDirSync(`${appPath}/${pkgDir}`)
+    const output = fs.createWriteStream(pkgPath)
 
-  archive.pipe(output)
+    output.on('close', () => {
+      resolve(pkgPath)
+    })
 
-  let archiveIgnore = ['tmp/**']
+    output.on('error', (err) => {
+      reject(err)
+    })
 
-  if (fs.pathExistsSync(`${appPath}/.zcliignore`)) {
-    archiveIgnore = archiveIgnore.concat(fs.readFileSync(`${appPath}/.zcliignore`).toString().replace(/\r\n/g, '\n').split('\n').filter((item) => {
-      return (item.trim().startsWith('#') ? null : item.trim())
-    }))
-  }
+    const archive = archiver('zip')
 
-  archive.glob('**', {
-    cwd: appPath,
-    ignore: archiveIgnore
-  })
+    let archiveIgnore = ['tmp/**']
 
-  await archive.finalize()
+    if (fs.pathExistsSync(`${appPath}/.zcliignore`)) {
+      archiveIgnore = archiveIgnore.concat(fs.readFileSync(`${appPath}/.zcliignore`).toString().replace(/\r\n/g, '\n').split('\n').filter((item) => {
+        return (item.trim().startsWith('#') ? null : item.trim())
+      }))
+    }
 
-  if (!fs.pathExistsSync(pkgPath)) {
-    throw new CLIError(`Failed to create package at ${pkgPath}`)
-  }
+    archive.glob('**', {
+      cwd: appPath,
+      ignore: archiveIgnore
+    })
 
-  return pkgPath
+    archive.pipe(output)
+
+    archive.finalize()
+
+    return pkgPath
+  })
 }
 
 export const validatePkg = async (pkgPath: string) => {
@@ -51,16 +58,21 @@ export const validatePkg = async (pkgPath: string) => {
     throw new CLIError(`Package not found at ${pkgPath}`)
   }
 
+  const file = await fs.readFile(pkgPath)
+
   const form = new FormData()
-  form.append('file', fs.createReadStream(pkgPath))
+  form.append('file', file, {
+    filename: path.basename(pkgPath)
+  })
+
   const res = await request.requestAPI('api/v2/apps/validate', {
     method: 'POST',
-    data: form
+    data: form.getBuffer(),
+    headers: form.getHeaders()
   })
 
   if (res.status !== 200) {
-    const { description } = await res.data
-    throw new CLIError(description)
+    throw new CLIError(res.data?.description)
   }
 
   return true