diff --git a/packages/fxa-auth-client/.cjs.package.json b/packages/fxa-auth-client/.cjs.package.json
deleted file mode 100644
index 69f62749943..00000000000
--- a/packages/fxa-auth-client/.cjs.package.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "name": "fxa-auth-client",
-  "type": "commonjs",
-  "exports": {
-    ".": "./server.js",
-    "./lib/client": "./client.js",
-    "./lib/crypto": "./lib/crypto.js",
-    "./lib/hawk": "./lib/hawk.js",
-    "./lib/recoveryKey": "./lib/recoveryKey.js",
-    "./lib/utils": "./lib/utils.js",
-    "./lib/*": "./lib/*.js"
-  }
-}
diff --git a/packages/fxa-auth-client/package.json b/packages/fxa-auth-client/package.json
index cc4ca6222c7..30b1c85cced 100644
--- a/packages/fxa-auth-client/package.json
+++ b/packages/fxa-auth-client/package.json
@@ -34,8 +34,8 @@
   },
   "scripts": {
     "lint": "eslint . --ext .ts",
-    "postinstall": "(tsc --build tsconfig.browser.json && tsc --build) || true",
-    "build": "tsc --build tsconfig.browser.json && tsc --build && tsc --build tsconfig.cjs.json && cp .cjs.package.json ./dist/server/cjs/packages/fxa-auth-client/package.json",
+    "postinstall": "(tsc --build tsconfig.browser.json && tsc --build && tsc --build tsconfig.cjs.json) || true",
+    "build": "tsc --build tsconfig.browser.json && tsc --build && tsc --build tsconfig.cjs.json",
     "compile": "tsc --noEmit",
     "ts-check": "tsc --noEmit",
     "test": "mocha -r esbuild-register test/*",