diff --git a/src/cmds/deploy.js b/src/cmds/deploy.js
index 68ee9a7..7cf544d 100644
--- a/src/cmds/deploy.js
+++ b/src/cmds/deploy.js
@@ -4,7 +4,6 @@ const ora = require('ora');
 const version = require('../../package.json').version;
 const log = require('../log');
 const messages = require('../messages');
-const shim = require('../shim');
 const env = require('process').env;
 const { stripIndent } = require('common-tags');
 const { traverse } = require('../traverse');
@@ -157,12 +156,6 @@ exports.builder = yargs => {
     describe: 'Path to the local `statickit.json` file',
     default: 'statickit.json'
   });
-
-  yargs.option('shim', {
-    describe: 'Install the functions shim package',
-    type: 'boolean',
-    default: true
-  });
 };
 
 exports.handler = async args => {
@@ -275,24 +268,6 @@ exports.handler = async args => {
           `Deployment succeeded ${chalk.gray(`(${response.data.id})`)}`
         );
 
-        if (args.shim && response.data.shim) {
-          const shimSpinner = ora(chalk.gray('Installing functions...'));
-          shimSpinner.start();
-
-          try {
-            await shim.install(response.data.shim);
-            shimSpinner.stop();
-            log.success(
-              `Functions installed ${chalk.gray(`(${response.data.shim})`)}`
-            );
-          } catch (error) {
-            shimSpinner.stop();
-            log.error('Functions failed to install');
-            console.error(error);
-            process.exitCode = 1;
-          }
-        }
-
         return;
 
       case 401:
diff --git a/src/shim.js b/src/shim.js
deleted file mode 100644
index 2f8263f..0000000
--- a/src/shim.js
+++ /dev/null
@@ -1,12 +0,0 @@
-const fs = require('fs');
-const execa = require('execa');
-
-const install = async ref => {
-  if (fs.existsSync('yarn.lock')) {
-    await execa('yarn', ['add', ref]);
-  } else {
-    await execa('npm', ['install', ref]);
-  }
-};
-
-module.exports = { install };
diff --git a/test/cmds/__snapshots__/deploy.test.js.snap b/test/cmds/__snapshots__/deploy.test.js.snap
index 4b6c651..c47fac4 100644
--- a/test/cmds/__snapshots__/deploy.test.js.snap
+++ b/test/cmds/__snapshots__/deploy.test.js.snap
@@ -136,44 +136,6 @@ Array [
 ]
 `;
 
-exports[`does not install the shim if --no-shim is used 1`] = `
-Array [
-  Array [
-    "✔ Deployment succeeded (xxxx-xxxx-xxxx)",
-  ],
-]
-`;
-
-exports[`does not install the shim if not present in the response 1`] = `
-Array [
-  Array [
-    "✔ Deployment succeeded (xxxx-xxxx-xxxx)",
-  ],
-]
-`;
-
-exports[`installs the shim if present in the response 1`] = `
-Array [
-  Array [
-    "✔ Deployment succeeded (xxxx-xxxx-xxxx)",
-  ],
-  Array [
-    "✔ Functions installed (shim-ref)",
-  ],
-]
-`;
-
-exports[`outputs shim install errors 1`] = `
-Array [
-  Array [
-    "✕ Functions failed to install",
-  ],
-  Array [
-    [Error: error installing package],
-  ],
-]
-`;
-
 exports[`sends a deploy request with the right params 1`] = `
 Array [
   Array [
diff --git a/test/cmds/deploy.test.js b/test/cmds/deploy.test.js
index 0e75be7..122dfbe 100644
--- a/test/cmds/deploy.test.js
+++ b/test/cmds/deploy.test.js
@@ -5,7 +5,6 @@ jest.mock('process', () => ({
   env: { MY_SECRET: 'pa$$w0rd', API_KEY: '12345' }
 }));
 jest.mock('@statickit/deploy');
-jest.mock('../../src/shim');
 
 jest.mock('ora', () => {
   return () => ({
@@ -15,7 +14,6 @@ jest.mock('ora', () => {
 });
 
 const cmd = require('../../src/cmds/deploy');
-const shim = require('../../src/shim');
 
 beforeEach(() => {
   jest.spyOn(console, 'log').mockImplementation();
@@ -25,7 +23,6 @@ beforeEach(() => {
 afterEach(() => {
   console.log.mockRestore();
   console.error.mockRestore();
-  shim.install.mockReset();
   deploy.request.mockReset();
 });
 
@@ -42,61 +39,6 @@ it('sends a deploy request with the right params', async () => {
   expect(console.log.mock.calls).toMatchSnapshot();
 });
 
-it('installs the shim if present in the response', async () => {
-  deploy.request.mockImplementation(() => {
-    return Promise.resolve({
-      status: 200,
-      data: { id: 'xxxx-xxxx-xxxx', shim: 'shim-ref' }
-    });
-  });
-
-  await cmd.handler({ config: '{}', key: 'xxx', shim: true });
-  expect(shim.install).toHaveBeenCalledWith('shim-ref');
-  expect(console.log.mock.calls).toMatchSnapshot();
-});
-
-it('does not install the shim if not present in the response', async () => {
-  deploy.request.mockImplementation(() => {
-    return Promise.resolve({
-      status: 200,
-      data: { id: 'xxxx-xxxx-xxxx', shim: null }
-    });
-  });
-
-  await cmd.handler({ config: '{}', key: 'xxx', shim: true });
-  expect(shim.install).not.toHaveBeenCalled();
-  expect(console.log.mock.calls).toMatchSnapshot();
-});
-
-it('does not install the shim if --no-shim is used', async () => {
-  deploy.request.mockImplementation(() => {
-    return Promise.resolve({
-      status: 200,
-      data: { id: 'xxxx-xxxx-xxxx', shim: 'shim-ref' }
-    });
-  });
-
-  await cmd.handler({ config: '{}', key: 'xxx', shim: false });
-  expect(shim.install).not.toHaveBeenCalled();
-  expect(console.log.mock.calls).toMatchSnapshot();
-});
-
-it('outputs shim install errors', async () => {
-  deploy.request.mockImplementation(() => {
-    return Promise.resolve({
-      status: 200,
-      data: { id: 'xxxx-xxxx-xxxx', shim: 'shim-ref' }
-    });
-  });
-
-  shim.install.mockImplementation(async () => {
-    throw new Error('error installing package');
-  });
-
-  await cmd.handler({ config: '{}', key: 'xxx', shim: true });
-  expect(console.error.mock.calls).toMatchSnapshot();
-});
-
 it('displays instructions for a missing mailchimp api key', async () => {
   deploy.request.mockImplementation(_params => {
     return Promise.resolve({