diff --git a/examples/kitchen-sink/packages/jest-presets/browser/jest-preset.ts b/examples/kitchen-sink/packages/jest-presets/browser/jest-preset.mjs
similarity index 84%
rename from examples/kitchen-sink/packages/jest-presets/browser/jest-preset.ts
rename to examples/kitchen-sink/packages/jest-presets/browser/jest-preset.mjs
index 86e7e0f7aedf5..7c7de304d7fbe 100644
--- a/examples/kitchen-sink/packages/jest-presets/browser/jest-preset.ts
+++ b/examples/kitchen-sink/packages/jest-presets/browser/jest-preset.mjs
@@ -1,5 +1,4 @@
-import type { Config } from "jest";
-
+/** @type {import('jest').Config} */
 const config = {
   roots: ["<rootDir>"],
   testEnvironment: "jsdom",
@@ -13,6 +12,6 @@ const config = {
     "<rootDir>/dist",
   ],
   preset: "ts-jest",
-} as const satisfies Config;
+};
 
 export default config;
diff --git a/examples/kitchen-sink/packages/jest-presets/node/jest-preset.ts b/examples/kitchen-sink/packages/jest-presets/node/jest-preset.mjs
similarity index 83%
rename from examples/kitchen-sink/packages/jest-presets/node/jest-preset.ts
rename to examples/kitchen-sink/packages/jest-presets/node/jest-preset.mjs
index f043d01b500ab..5be59385358fb 100644
--- a/examples/kitchen-sink/packages/jest-presets/node/jest-preset.ts
+++ b/examples/kitchen-sink/packages/jest-presets/node/jest-preset.mjs
@@ -1,5 +1,4 @@
-import type { Config } from "jest";
-
+/** @type {import('jest').Config} */
 const config = {
   roots: ["<rootDir>"],
   transform: {
@@ -12,6 +11,6 @@ const config = {
     "<rootDir>/dist",
   ],
   preset: "ts-jest",
-} as const satisfies Config;
+};
 
 export default config;