diff --git a/README.md b/README.md
index 843dd3db8..18bb62a56 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@
 <p align=center>
 <a href="https://app.saucelabs.com/u/sinonjs">
   <img src="https://app.saucelabs.com/browser-matrix/sinonjs.svg" alt="Sauce Test Status"/>
-</a> 
+</a>
 </p>
 -->
 
diff --git a/build.cjs b/build.cjs
index 1bb3be17f..f63bc3c41 100755
--- a/build.cjs
+++ b/build.cjs
@@ -44,7 +44,6 @@ makeBundle(
     },
     function (bundle) {
         var script = preamble + bundle;
-        fs.writeFileSync("pkg/sinon.cjs", script);
         fs.writeFileSync("pkg/sinon.js", script); // WebWorker can only load js files
     }
 );
diff --git a/package.json b/package.json
index 9dae0e914..499ef3906 100644
--- a/package.json
+++ b/package.json
@@ -118,7 +118,7 @@
   "main": "./lib/sinon.js",
   "module": "./pkg/sinon-esm.js",
   "exports": {
-    "require": "./pkg/sinon.cjs",
+    "require": "./lib/sinon.js",
     "import": "./pkg/sinon-esm.js"
   },
   "type": "module",