diff --git a/packages-internal/test-utils/package.json b/packages-internal/test-utils/package.json
index a5701bc6ec72fb..a73270fd9b1e67 100644
--- a/packages-internal/test-utils/package.json
+++ b/packages-internal/test-utils/package.json
@@ -5,30 +5,79 @@
   "description": "Utilities for MUI tests. This is an internal package not meant for general use.",
   "main": "./build/index.js",
   "exports": {
-    ".": "./build/index.js",
-    "./createDescribe": "./build/createDescribe.js",
-    "./createRenderer": "./build/createRenderer.js",
-    "./init": "./build/init.js",
+    ".": {
+      "import": "./build/esm/index.js",
+      "default": "./build/index.js"
+    },
+    "./createDescribe": {
+      "import": "./build/esm/createDescribe.js",
+      "default": "./build/createDescribe.js"
+    },
+    "./createRenderer": {
+      "import": "./build/esm/createRenderer.js",
+      "default": "./build/createRenderer.js"
+    },
+    "./init": {
+      "import": "./build/esm/init.js",
+      "default": "./build/init.js"
+    },
     "./initMatchers": {
-      "types": "./build/initMatchers.d.ts",
-      "default": "./build/initMatchers.js"
+      "import": {
+        "types": "./build/esm/initMatchers.d.ts",
+        "default": "./build/esm/initMatchers.js"
+      },
+      "default": {
+        "types": "./build/initMatchers.d.ts",
+        "default": "./build/initMatchers.js"
+      }
     },
     "./initPlaywrightMatchers": {
-      "types": "./build/initPlaywrightMatchers.d.ts",
-      "default": "./build/initPlaywrightMatchers.js"
+      "import": {
+        "types": "./build/esm/initPlaywrightMatchers.d.ts",
+        "default": "./build/esm/initPlaywrightMatchers.js"
+      },
+      "default": {
+        "types": "./build/initPlaywrightMatchers.d.ts",
+        "default": "./build/initPlaywrightMatchers.js"
+      }
+    },
+    "./KarmaReporterReactProfiler": {
+      "import": "./build/esm/KarmaReporterReactProfiler.js",
+      "default": "./build/KarmaReporterReactProfiler.js"
+    },
+    "./setupBabel": {
+      "import": "./build/esm/setupBabel.js",
+      "default": "./build/setupBabel.js"
+    },
+    "./setupBabelPlaywright": {
+      "import": "./build/esm/setupBabelPlaywright.js",
+      "default": "./build/setupBabelPlaywright.js"
+    },
+    "./setupJSDOM": {
+      "import": "./build/esm/setupJSDOM.js",
+      "default": "./build/setupJSDOM.js"
+    },
+    "./setupKarma": {
+      "import": "./build/esm/setupKarma.js",
+      "default": "./build/setupKarma.js"
+    },
+    "./chaiPlugin": {
+      "import": "./build/esm/chaiPlugin.js",
+      "default": "./build/chaiPlugin.js"
+    },
+    "./setupVitest": {
+      "import": "./build/esm/setupVitest.js",
+      "default": "./build/setupVitest.js"
     },
-    "./KarmaReporterReactProfiler": "./build/KarmaReporterReactProfiler.js",
-    "./setupBabel": "./build/setupBabel.js",
-    "./setupBabelPlaywright": "./build/setupBabelPlaywright.js",
-    "./setupJSDOM": "./build/setupJSDOM.js",
-    "./setupKarma": "./build/setupKarma.js",
-    "./chaiPlugin": "./build/chaiPlugin.js",
-    "./setupVitest": "./build/setupVitest.js",
-    "./describeSkipIf": "./build/describeSkipIf.js"
+    "./describeSkipIf": {
+      "import": "./build/esm/describeSkipIf.js",
+      "default": "./build/describeSkipIf.js"
+    }
   },
   "scripts": {
-    "prebuild": "rimraf ./build",
-    "build": "tsc -p tsconfig.build.json",
+    "prebuild": "rimraf --glob -- \"./build\" \"./.*.tsbuildinfo\"",
+    "build": "tsc -p tsconfig.build.json && tsc -p tsconfig.build.esm.json && pnpm build:esm-manifest",
+    "build:esm-manifest": "node -e \"require('fs').writeFileSync('./build/esm/package.json', JSON.stringify({ type: 'module' }))\"",
     "typescript": "tsc -p tsconfig.json",
     "release:publish": "pnpm publish --tag latest",
     "release:publish:dry-run": "pnpm publish --tag latest --registry=\"http://localhost:4873/\""
diff --git a/packages-internal/test-utils/tsconfig.build.esm.json b/packages-internal/test-utils/tsconfig.build.esm.json
new file mode 100644
index 00000000000000..8127aeb7ef4e0f
--- /dev/null
+++ b/packages-internal/test-utils/tsconfig.build.esm.json
@@ -0,0 +1,10 @@
+{
+  "extends": "./tsconfig.build.json",
+  "compilerOptions": {
+    "outDir": "./build/esm",
+    "tsBuildInfoFile": "./.esm.tsbuildinfo",
+    "target": "ES2022",
+    "module": "ES2022",
+    "moduleResolution": "bundler",
+  }
+}
diff --git a/packages-internal/test-utils/tsconfig.build.json b/packages-internal/test-utils/tsconfig.build.json
index 62bf0d03440fe5..66fefacaaff678 100644
--- a/packages-internal/test-utils/tsconfig.build.json
+++ b/packages-internal/test-utils/tsconfig.build.json
@@ -8,7 +8,7 @@
     "sourceMap": true,
     "noEmit": false,
     "composite": true,
-    "tsBuildInfoFile": "./build/.tsbuildinfo",
+    "tsBuildInfoFile": "./.cjs.tsbuildinfo",
     "target": "ES2020",
     "module": "commonjs",
     "types": ["node"],