diff --git a/scripts/build/babel.ts b/scripts/build/babel.ts
index 4d51dca20..db923b88c 100644
--- a/scripts/build/babel.ts
+++ b/scripts/build/babel.ts
@@ -2,18 +2,18 @@ import {BundleDef, BundleType} from "./bundles"
 import {getBundleOutputPaths} from "./packaging"
 import {asyncMkDirP, getPackageDir} from "./utils"
 
+import {transformFileSync} from '@babel/core';
 const fs = require("fs")
 const path = require("path")
 const chalk = require("chalk")
-const babel = require("babel-core")
 const ora = require("ora")
 
 const babelConfig = require("./babel.config")
 
 const ignorePatterns = [/\.test.[jt]s$/, /fixtures/]
 
-function walk(base: string, relativePath = "") {
-  let files = []
+function walk(base: string, relativePath = ""): string[] {
+  let files: string[] = []
 
   fs.readdirSync(path.join(base, relativePath)).forEach(dirname => {
     const directory = path.join(relativePath, dirname)
@@ -64,7 +64,7 @@ export default async function(bundle: BundleDef) {
       await asyncMkDirP(outputDir)
 
       if (!filename.endsWith(".d.ts")) {
-        const { code } = babel.transformFileSync(
+        const { code } = transformFileSync(
           path.join(srcDir, filename),
           babelConfig({ modules: true })
         )
diff --git a/scripts/build/packaging.ts b/scripts/build/packaging.ts
index b6d8f772a..ed7d46ccf 100644
--- a/scripts/build/packaging.ts
+++ b/scripts/build/packaging.ts
@@ -1,4 +1,4 @@
-import {existsSync, readdirSync, unlinkSync} from "fs"
+import {existsSync, readdirSync} from "fs"
 import {BundleType as BundleType} from "./bundles"
 
 import {
@@ -6,16 +6,14 @@ import {
 } from "./utils"
 
 export function getBundleOutputPaths(bundleType: BundleType, filename: string, packageName: string) {
-  const _filename = filename.replace(/^@lingui\//, "")
-
   switch (bundleType) {
     case BundleType.NOOP:
     case BundleType.NODE:
-      return [`packages/${packageName}/build/${_filename}`]
+      return [`packages/${packageName}/build/${filename}`]
     case BundleType.ESM:
-      return [`packages/${packageName}/build/esm/${_filename}`]
+      return [`packages/${packageName}/build/esm/${filename}`]
     case BundleType.UNIVERSAL:
-      return [`packages/${packageName}/build/cjs/${_filename}`]
+      return [`packages/${packageName}/build/cjs/${filename}`]
     // case BundleType.UMD_DEV:
     // case BundleType.UMD_PROD:
     //   return [
diff --git a/scripts/build/rollup.ts b/scripts/build/rollup.ts
index 4644ecc47..6467e419b 100644
--- a/scripts/build/rollup.ts
+++ b/scripts/build/rollup.ts
@@ -321,7 +321,6 @@ async function build(bundle: BundleDef, bundleType: RollupBundleType) {
 
 export default async function (bundle: BundleDef) {
   await build(bundle, RollupBundleType.NODE_DEV)
-
   await build(bundle, RollupBundleType.NODE_PROD)
   await build(bundle, RollupBundleType.ESM_DEV)
   await build(bundle, RollupBundleType.ESM_PROD)
diff --git a/scripts/build/utils.ts b/scripts/build/utils.ts
index 5e83ae16d..95d09ce6d 100644
--- a/scripts/build/utils.ts
+++ b/scripts/build/utils.ts
@@ -9,7 +9,7 @@ export async function asyncCopyTo(from: string, to: string) {
 
   await asyncMkDirP(path.dirname(to))
 
-  return new Promise((resolve, reject) => {
+  return new Promise<void>((resolve, reject) => {
     ncp(from, to, error => {
       if (error) {
         // Wrap to have a useful stack trace.
@@ -30,7 +30,7 @@ export function asyncMkDirP(filepath: string) {
 }
 
 export function asyncRimRaf(filepath: string) {
-  return new Promise((resolve, reject) =>
+  return new Promise<void>((resolve, reject) =>
     rimraf(filepath, error => {
       if (error) {
         reject(error)