diff --git a/modules/sdk-core/package.json b/modules/sdk-core/package.json
index ab3649c8c3..c38b09b498 100644
--- a/modules/sdk-core/package.json
+++ b/modules/sdk-core/package.json
@@ -2,32 +2,15 @@
   "name": "@bitgo/sdk-core",
   "version": "36.22.0",
   "description": "core library functions for BitGoJS",
-  "main": "./dist/cjs/src/index.js",
-  "module": "./dist/esm/index.js",
-  "browser": "./dist/esm/index.js",
-  "types": "./dist/cjs/src/index.d.ts",
+  "main": "./dist/src/index.js",
+  "types": "./dist/src/index.d.ts",
   "files": [
-    "dist/cjs",
-    "dist/esm"
+    "dist"
   ],
-  "exports": {
-    ".": {
-      "import": {
-        "types": "./dist/esm/index.d.ts",
-        "default": "./dist/esm/index.js"
-      },
-      "require": {
-        "types": "./dist/cjs/src/index.d.ts",
-        "default": "./dist/cjs/src/index.js"
-      }
-    }
-  },
   "scripts": {
     "test": "yarn unit-test",
     "unit-test": "nyc -- mocha --recursive test",
-    "build": "yarn build:cjs && yarn build:esm",
-    "build:cjs": "yarn tsc --build --incremental --verbose .",
-    "build:esm": "yarn tsc --project tsconfig.esm.json",
+    "build": "yarn tsc --build --incremental --verbose .",
     "fmt": "prettier --write .",
     "check-fmt": "prettier --check '**/*.{ts,js,json}'",
     "clean": "rm -r ./dist",
diff --git a/modules/sdk-core/src/bitgo/tss/eddsa/eddsa.ts b/modules/sdk-core/src/bitgo/tss/eddsa/eddsa.ts
index d533ad507a..3a028852b2 100644
--- a/modules/sdk-core/src/bitgo/tss/eddsa/eddsa.ts
+++ b/modules/sdk-core/src/bitgo/tss/eddsa/eddsa.ts
@@ -23,7 +23,7 @@ import {
 } from '../../utils';
 import { BaseTransaction } from '../../../account-lib';
 import { Ed25519Bip32HdTree } from '@bitgo/sdk-lib-mpc';
-import _ from 'lodash';
+import _ = require('lodash');
 import { commonVerifyWalletSignature, getTxRequest, sendSignatureShare } from '../common';
 import { IRequestTracer } from '../../../api';
 
diff --git a/modules/sdk-core/tsconfig.esm.json b/modules/sdk-core/tsconfig.esm.json
deleted file mode 100644
index 17f39ab0f3..0000000000
--- a/modules/sdk-core/tsconfig.esm.json
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "outDir": "./dist/esm",
-    "rootDir": "./src",
-    "module": "ES2020",
-    "target": "ES2020",
-    "moduleResolution": "bundler",
-    "lib": ["ES2020", "DOM"],
-    "declaration": true,
-    "declarationMap": true,
-    "skipLibCheck": true
-  },
-  "include": ["src/**/*"],
-  "exclude": ["node_modules", "test", "dist"],
-  "references": []
-}
diff --git a/modules/sdk-core/tsconfig.json b/modules/sdk-core/tsconfig.json
index 226bbcb2f5..d718116c68 100644
--- a/modules/sdk-core/tsconfig.json
+++ b/modules/sdk-core/tsconfig.json
@@ -1,10 +1,8 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "outDir": "./dist/cjs",
+    "outDir": "./dist",
     "rootDir": "./",
-    "module": "node16",
-    "moduleResolution": "node16",
     "strictPropertyInitialization": false,
     "esModuleInterop": true,
     "typeRoots": ["../../types", "./node_modules/@types", "../../node_modules/@types"]