diff --git a/packages/api-explorer/package.json b/packages/api-explorer/package.json
index 5671c135a..f2a75b90a 100644
--- a/packages/api-explorer/package.json
+++ b/packages/api-explorer/package.json
@@ -2,7 +2,9 @@
   "name": "@looker/api-explorer",
   "version": "0.9.7",
   "description": "Looker API Explorer",
-  "main": "lib/esm/index.js",
+  "main": "lib/index.js",
+  "module": "lib/esm/index.js",
+  "sideEffects": "false",
   "typings": "lib/index.d.ts",
   "license": "MIT",
   "author": "Looker",
diff --git a/packages/api-explorer/src/components/DocSDKs/utils.ts b/packages/api-explorer/src/components/DocSDKs/utils.ts
index 93f2f96b2..75e34e520 100644
--- a/packages/api-explorer/src/components/DocSDKs/utils.ts
+++ b/packages/api-explorer/src/components/DocSDKs/utils.ts
@@ -24,7 +24,7 @@
 
  */
 import { IMethod } from '@looker/sdk-codegen'
-import { clone } from 'lodash'
+import clone from 'lodash/clone'
 
 /**
  * Given a method create a copy and remove its description
diff --git a/packages/api-explorer/src/components/SideNav/SideNav.spec.tsx b/packages/api-explorer/src/components/SideNav/SideNav.spec.tsx
index 7c121d4bb..8dc7975f0 100644
--- a/packages/api-explorer/src/components/SideNav/SideNav.spec.tsx
+++ b/packages/api-explorer/src/components/SideNav/SideNav.spec.tsx
@@ -25,7 +25,7 @@
  */
 import React from 'react'
 import { ApiModel, CriteriaToSet } from '@looker/sdk-codegen'
-import { pick } from 'lodash'
+import pick from 'lodash/pick'
 import userEvent from '@testing-library/user-event'
 import { act, screen, waitFor } from '@testing-library/react'
 
diff --git a/packages/api-explorer/src/components/SideNav/SideNavMethods.spec.tsx b/packages/api-explorer/src/components/SideNav/SideNavMethods.spec.tsx
index b00e781aa..92ad92d2d 100644
--- a/packages/api-explorer/src/components/SideNav/SideNavMethods.spec.tsx
+++ b/packages/api-explorer/src/components/SideNav/SideNavMethods.spec.tsx
@@ -24,7 +24,7 @@
 
  */
 import React from 'react'
-import { pick } from 'lodash'
+import pick from 'lodash/pick'
 import userEvent from '@testing-library/user-event'
 import { screen } from '@testing-library/react'
 
diff --git a/packages/api-explorer/src/components/SideNav/SideNavTags.spec.tsx b/packages/api-explorer/src/components/SideNav/SideNavTags.spec.tsx
index 9d6e84a57..55c893282 100644
--- a/packages/api-explorer/src/components/SideNav/SideNavTags.spec.tsx
+++ b/packages/api-explorer/src/components/SideNav/SideNavTags.spec.tsx
@@ -24,7 +24,7 @@
 
  */
 import React from 'react'
-import { pick } from 'lodash'
+import pick from 'lodash/pick'
 import { screen } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
 
diff --git a/packages/api-explorer/src/reducers/spec/utils.spec.ts b/packages/api-explorer/src/reducers/spec/utils.spec.ts
index 06eb70b09..31a7e2725 100644
--- a/packages/api-explorer/src/reducers/spec/utils.spec.ts
+++ b/packages/api-explorer/src/reducers/spec/utils.spec.ts
@@ -24,7 +24,7 @@
 
  */
 import { ApiModel, SpecList } from '@looker/sdk-codegen'
-import { omit } from 'lodash'
+import omit from 'lodash/omit'
 
 import { specs } from '../../test-data'
 import {
diff --git a/packages/api-explorer/src/scenes/DiffScene/diffUtils.ts b/packages/api-explorer/src/scenes/DiffScene/diffUtils.ts
index 756bd4d51..f88931093 100644
--- a/packages/api-explorer/src/scenes/DiffScene/diffUtils.ts
+++ b/packages/api-explorer/src/scenes/DiffScene/diffUtils.ts
@@ -24,7 +24,7 @@
 
  */
 
-import { cloneDeep } from 'lodash'
+import cloneDeep from 'lodash/cloneDeep'
 import {
   compareSpecs,
   DiffFilter,
diff --git a/packages/code-editor/package.json b/packages/code-editor/package.json
index d3dae5df6..600106b80 100644
--- a/packages/code-editor/package.json
+++ b/packages/code-editor/package.json
@@ -2,7 +2,9 @@
   "name": "@looker/code-editor",
   "version": "0.1.1",
   "description": "A syntax highlighter Viewer and Editor for Looker SDK supported languages.",
-  "main": "lib/esm/index.js",
+  "main": "lib/index.js",
+  "module": "lib/esm/index.js",
+  "sideEffects": "false",
   "typings": "lib/index.d.ts",
   "files": [
     "lib"
@@ -24,7 +26,7 @@
     "watch": "yarn lerna exec --scope @looker/code-editor --stream 'BABEL_ENV=build babel src --root-mode upward --out-dir lib/esm --source-maps --extensions .ts,.tsx --no-comments --watch'"
   },
   "devDependencies": {
-    "@looker/components-test-utils": "^1.1.3",    
+    "@looker/components-test-utils": "^1.1.3",
     "@looker/sdk-codegen": "^21.0.16",
     "@testing-library/jest-dom": "^5.11.6",
     "@testing-library/react": "^11.2.2",
diff --git a/packages/extension-api-explorer/package.json b/packages/extension-api-explorer/package.json
index 8d05a496b..d928dba23 100644
--- a/packages/extension-api-explorer/package.json
+++ b/packages/extension-api-explorer/package.json
@@ -2,10 +2,8 @@
   "name": "@looker/extension-api-explorer",
   "version": "21.6.0",
   "description": "Looker API Explorer extension version  ",
-  "main": "lib/index.js",
-  "module": "lib/esm/index.js",
-  "sideEffects": "false",
-  "typings": "lib/index.d.ts",
+  "main": "dist/bundle.js",
+  "sideEffects": false,
   "license": "MIT",
   "private": true,
   "homepage": "https://github.com/looker-open-source/sdk-codegen/tree/main/packages/extension-api-explorer",
diff --git a/packages/extension-api-explorer/webpack.prod.config.js b/packages/extension-api-explorer/webpack.prod.config.js
index 16843d8e9..c2180c4bb 100644
--- a/packages/extension-api-explorer/webpack.prod.config.js
+++ b/packages/extension-api-explorer/webpack.prod.config.js
@@ -29,4 +29,7 @@ const browser = require('../../webpack.browser.config')()
 
 module.exports = merge(base, browser, {
   mode: 'production',
+  optimization: {
+    chunkIds: 'named',
+  },
 })
diff --git a/packages/extension-sdk-react/src/components/RouteChangeListener/RouteChangeListener.tsx b/packages/extension-sdk-react/src/components/RouteChangeListener/RouteChangeListener.tsx
index 6db8dad6f..1ce1e45b1 100644
--- a/packages/extension-sdk-react/src/components/RouteChangeListener/RouteChangeListener.tsx
+++ b/packages/extension-sdk-react/src/components/RouteChangeListener/RouteChangeListener.tsx
@@ -27,7 +27,7 @@
 import React, { useEffect } from 'react'
 import { useLocation, useHistory } from 'react-router-dom'
 import { ExtensionHostApi } from '@looker/extension-sdk'
-import { clone } from 'lodash'
+import clone from 'lodash/clone'
 import { RouteChangeListenerProps } from './types'
 
 export const RouteChangeListener: React.FC<RouteChangeListenerProps> = ({
diff --git a/packages/hackathon/src/data/sheets_client.ts b/packages/hackathon/src/data/sheets_client.ts
index 53051229c..b05937455 100644
--- a/packages/hackathon/src/data/sheets_client.ts
+++ b/packages/hackathon/src/data/sheets_client.ts
@@ -23,7 +23,7 @@
  SOFTWARE.
 
  */
-import { omit } from 'lodash'
+import omit from 'lodash/omit'
 import { ValidationMessages } from '@looker/components'
 import { DefaultSettings } from '@looker/sdk-rtl'
 import { ITabTable, SheetSDK } from '@looker/wholly-sheet'
diff --git a/packages/run-it/package.json b/packages/run-it/package.json
index ed808e6f0..5913510f5 100644
--- a/packages/run-it/package.json
+++ b/packages/run-it/package.json
@@ -2,7 +2,9 @@
   "name": "@looker/run-it",
   "version": "0.9.7",
   "description": "A dynamic REST request input form and response visualizer",
-  "main": "lib/esm/index.js",
+  "main": "lib/index.js",
+  "module": "lib/esm/index.js",
+  "sideEffects": "false",
   "typings": "lib/index.d.ts",
   "files": [
     "lib"
diff --git a/packages/run-it/src/utils/requestUtils.ts b/packages/run-it/src/utils/requestUtils.ts
index 79719ad36..ff0d4d8e5 100644
--- a/packages/run-it/src/utils/requestUtils.ts
+++ b/packages/run-it/src/utils/requestUtils.ts
@@ -25,7 +25,7 @@
  */
 
 import { IAPIMethods, IRawResponse } from '@looker/sdk-rtl'
-import { cloneDeep } from 'lodash'
+import cloneDeep from 'lodash/cloneDeep'
 
 import { RunItHttpMethod, RunItInput, RunItValues } from '../RunIt'
 import { runItSDK } from './RunItSDK'
diff --git a/packages/sdk-codegen-scripts/src/convert.spec.ts b/packages/sdk-codegen-scripts/src/convert.spec.ts
index e6b3cbd78..3e6aa57d9 100644
--- a/packages/sdk-codegen-scripts/src/convert.spec.ts
+++ b/packages/sdk-codegen-scripts/src/convert.spec.ts
@@ -25,7 +25,8 @@
  */
 
 import { readFileSync } from 'fs'
-import { cloneDeep, isEmpty } from 'lodash'
+import cloneDeep from 'lodash/cloneDeep'
+import isEmpty from 'lodash/isEmpty'
 import { NodeSettingsIniFile, LookerNodeSDK } from '@looker/sdk-node'
 import {
   fixConversion,
diff --git a/packages/sdk-codegen/package.json b/packages/sdk-codegen/package.json
index c82f9b13a..3a90b56f7 100644
--- a/packages/sdk-codegen/package.json
+++ b/packages/sdk-codegen/package.json
@@ -3,6 +3,8 @@
   "version": "21.0.16",
   "description": "Looker SDK Codegen core",
   "main": "lib/index.js",
+  "module": "lib/esm/index.js",
+  "sideEffects": "false",
   "typings": "lib/index.d.ts",
   "files": [
     "lib"
diff --git a/packages/sdk-codegen/src/sdkModels.ts b/packages/sdk-codegen/src/sdkModels.ts
index e14552cde..e19c06e62 100644
--- a/packages/sdk-codegen/src/sdkModels.ts
+++ b/packages/sdk-codegen/src/sdkModels.ts
@@ -1286,7 +1286,7 @@ export class Method extends SchemadSymbol implements IMethod {
   }
 
   get errorResponses() {
-    // TODO use lodash or underscore?
+    // TODO use lodash?
     const result = []
     const map = new Map()
     for (const item of this.responses.filter((r) => r.statusCode >= 400)) {
diff --git a/packages/sdk-codegen/src/specConverter.ts b/packages/sdk-codegen/src/specConverter.ts
index f3142adfa..cad83bb35 100644
--- a/packages/sdk-codegen/src/specConverter.ts
+++ b/packages/sdk-codegen/src/specConverter.ts
@@ -24,7 +24,7 @@
 
  */
 
-import { isEmpty } from 'lodash'
+import isEmpty from 'lodash/isEmpty'
 import { APIMethods, Url } from '@looker/sdk-rtl'
 import { ApiModel, ArgValues, IApiModel, KeyedCollection } from './sdkModels'
 
diff --git a/packages/sdk-codegen/src/specDiff.spec.ts b/packages/sdk-codegen/src/specDiff.spec.ts
index a39b0c877..42eb05843 100644
--- a/packages/sdk-codegen/src/specDiff.spec.ts
+++ b/packages/sdk-codegen/src/specDiff.spec.ts
@@ -25,7 +25,8 @@
  */
 
 import { readFileSync } from 'fs'
-import { cloneDeep, pick } from 'lodash'
+import cloneDeep from 'lodash/cloneDeep'
+import pick from 'lodash/pick'
 import { OperationObject } from 'openapi3-ts'
 
 import {
diff --git a/packages/wholly-sheet/src/RowModel.ts b/packages/wholly-sheet/src/RowModel.ts
index fcbe52778..37d8a15da 100644
--- a/packages/wholly-sheet/src/RowModel.ts
+++ b/packages/wholly-sheet/src/RowModel.ts
@@ -26,7 +26,7 @@
 
 import { v4 as uuidv4 } from 'uuid'
 import { boolDefault } from '@looker/sdk-rtl'
-import { omit } from 'lodash'
+import omit from 'lodash/omit'
 import { SheetValues } from './SheetSDK'
 
 export const noDate = new Date(-8640000000000000)