diff --git a/packages/packem/README.md b/packages/packem/README.md
index 1674c8965..2bc5a03c5 100644
--- a/packages/packem/README.md
+++ b/packages/packem/README.md
@@ -438,7 +438,7 @@ Not only does `packem` shim `ESM ⇄ CJS`, but fixes the `export` and `export ty
 
 To enable both features you need to add `cjsInterop: true` to your `packem` config.
 
-```ts
+```js
 export default defineConfig({
     cjsInterop: true,
     // ...
diff --git a/packages/packem/__tests__/intigration/package-json-exports.test.ts b/packages/packem/__tests__/intigration/package-json-exports.test.ts
index b8fd3ddd5..44bcaab9c 100644
--- a/packages/packem/__tests__/intigration/package-json-exports.test.ts
+++ b/packages/packem/__tests__/intigration/package-json-exports.test.ts
@@ -85,7 +85,6 @@ export function method() {
         expect(binProcess.stderr).toBe("");
         expect(binProcess.exitCode).toBe(0);
 
-         
         for (const file of ["index.cjs", "index.mjs"]) {
             // eslint-disable-next-line security/detect-non-literal-fs-filename
             expect(existsSync(`${temporaryDirectoryPath}/dist/${file}`)).toBeTruthy();
@@ -129,7 +128,6 @@ export function method() {
         expect(binProcess.stderr).toBe("");
         expect(binProcess.exitCode).toBe(0);
 
-         
         for (const [file, regex] of [
             ["index.development.cjs", /= "development"/],
             ["index.development.mjs", /= "development"/],
@@ -198,7 +196,6 @@ export function method() {
         expect(binProcess.stderr).toBe("");
         expect(binProcess.exitCode).toBe(0);
 
-         
         for (const [file, regex] of [
             ["index.development.cjs", /= "development"/],
             ["index.development.mjs", /= "development"/],
@@ -271,7 +268,6 @@ export { IString };`,
         expect(binProcess.stderr).toBe("");
         expect(binProcess.exitCode).toBe(0);
 
-         
         for (const [file, regex] of [
             ["./index.mjs", /const shared = true/],
             ["./index.react-server.mjs", /"react-server"/],
diff --git a/packages/packem/__tests__/intigration/package-json-imports.test.ts b/packages/packem/__tests__/intigration/package-json-imports.test.ts
index 020193aaa..8a86156fe 100644
--- a/packages/packem/__tests__/intigration/package-json-imports.test.ts
+++ b/packages/packem/__tests__/intigration/package-json-imports.test.ts
@@ -33,8 +33,8 @@ describe("packem package.json imports", () => {
             },
             exports: {
                 ".": {
-                    "import": "./dist/index.mjs",
-                    "require": "./dist/index.cjs",
+                    import: "./dist/index.mjs",
+                    require: "./dist/index.cjs",
                 },
             },
             imports: {
diff --git a/packages/packem/__tests__/intigration/typescript.test.ts b/packages/packem/__tests__/intigration/typescript.test.ts
index 9f1778fc0..50b0ad5df 100644
--- a/packages/packem/__tests__/intigration/typescript.test.ts
+++ b/packages/packem/__tests__/intigration/typescript.test.ts
@@ -1300,7 +1300,7 @@ export type Num = number;
             },
         );
 
-        it.each(["typescript", /* "oxc", "swc" */])(
+        it.each(["typescript", "oxc", "swc"])(
             "should patch cjs default export with '%s' isolated declarations transformer",
             async (isolatedDeclarationTransformer) => {
                 expect.assertions(6);
diff --git a/packages/packem/__tests__/unit/hooks/preset/utils/infer-entries.test.ts b/packages/packem/__tests__/unit/hooks/preset/utils/infer-entries.test.ts
index 15c881dcb..f02e4ef1d 100644
--- a/packages/packem/__tests__/unit/hooks/preset/utils/infer-entries.test.ts
+++ b/packages/packem/__tests__/unit/hooks/preset/utils/infer-entries.test.ts
@@ -9,7 +9,6 @@ import inferEntries from "../../../../../src/hooks/preset/utils/infer-entries";
 import type { BuildContext, InferEntriesResult } from "../../../../../src/types";
 
 const createFiles = (files: string[], directory: string) => {
-     
     for (const file of files) {
         writeFileSync(`${directory}/${file}`, "", {
             overwrite: true,
diff --git a/packages/packem/src/rollup/plugins/cjs-interop.ts b/packages/packem/src/rollup/plugins/cjs-interop.ts
index cdfbb10c3..3c36d378b 100644
--- a/packages/packem/src/rollup/plugins/cjs-interop.ts
+++ b/packages/packem/src/rollup/plugins/cjs-interop.ts
@@ -25,7 +25,6 @@ export const cjsInteropPlugin = ({
         ): Promise<{
             code: string;
             map: SourceMapInput;
-             
         } | null> => {
             // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
             if (chunk.type !== "chunk" || !chunk.isEntry) {
diff --git a/packages/packem/src/validator/package-json/validate-package-fields.ts b/packages/packem/src/validator/package-json/validate-package-fields.ts
index b90655a89..f3043f874 100644
--- a/packages/packem/src/validator/package-json/validate-package-fields.ts
+++ b/packages/packem/src/validator/package-json/validate-package-fields.ts
@@ -18,7 +18,10 @@ const validatePackageFields = (context: BuildContext): void => {
         } else if (pkg.files.length === 0) {
             warn(context, "The 'files' field in your package.json is empty. Please specify the files to be included in the package.");
         } else if (!pkg.files.some((file) => file.includes(context.options.outDir))) {
-            warn(context, `The 'files' field in your package.json is missing the '${context.options.outDir}' directory. Ensure the output directory is included.`);
+            warn(
+                context,
+                `The 'files' field in your package.json is missing the '${context.options.outDir}' directory. Ensure the output directory is included.`,
+            );
         }
     }
 
@@ -42,7 +45,10 @@ const validatePackageFields = (context: BuildContext): void => {
             }
 
             if (pkg.module && pkg.main && pkg.module === pkg.main) {
-                warn(context, `Conflict detected: The 'module' and 'main' fields both point to '${pkg.module as string}'. Please ensure they refer to different module types.`);
+                warn(
+                    context,
+                    `Conflict detected: The 'module' and 'main' fields both point to '${pkg.module as string}'. Please ensure they refer to different module types.`,
+                );
             }
 
             if (context.options.emitESM && pkg.module?.includes(".cjs")) {
@@ -69,7 +75,10 @@ const validatePackageFields = (context: BuildContext): void => {
                 }
 
                 if (pkg.module && pkg.main && pkg.module === pkg.main) {
-                    warn(context, `Conflict detected: The 'module' and 'main' fields both point to '${pkg.module as string}'. Please ensure they refer to different module types.`);
+                    warn(
+                        context,
+                        `Conflict detected: The 'module' and 'main' fields both point to '${pkg.module as string}'. Please ensure they refer to different module types.`,
+                    );
                 }
             }
 
@@ -85,11 +94,17 @@ const validatePackageFields = (context: BuildContext): void => {
 
     if (validation?.packageJson?.bin !== false) {
         if (typeof pkg.bin === "string" && pkg.bin.includes(isCjs ? ".mjs" : ".cjs")) {
-            warn(context, `The 'bin' field in your package.json should not use a ${isCjs ? ".mjs" : ".cjs"} extension for ${isCjs ? "CommonJS" : "ES modules"} binaries.`);
+            warn(
+                context,
+                `The 'bin' field in your package.json should not use a ${isCjs ? ".mjs" : ".cjs"} extension for ${isCjs ? "CommonJS" : "ES modules"} binaries.`,
+            );
         } else if (typeof pkg.bin === "object") {
             for (const [bin, binPath] of Object.entries(pkg.bin)) {
                 if (binPath && (binPath as string).includes(isCjs ? ".mjs" : ".cjs")) {
-                    warn(context, `The 'bin.${bin}' field in your package.json should not use a ${isCjs ? ".mjs" : ".cjs"} extension for ${isCjs ? "CommonJS" : "ES modules"} binaries.`);
+                    warn(
+                        context,
+                        `The 'bin.${bin}' field in your package.json should not use a ${isCjs ? ".mjs" : ".cjs"} extension for ${isCjs ? "CommonJS" : "ES modules"} binaries.`,
+                    );
                 }
             }
         }
@@ -105,7 +120,10 @@ const validatePackageFields = (context: BuildContext): void => {
             validation?.packageJson?.typesVersions !== false &&
             (pkg.typesVersions === undefined || Object.keys(pkg.typesVersions).length === 0)
         ) {
-            warn(context, "No 'typesVersions' field found in your package.json. Consider adding this field, or change the declaration option to 'node16' or 'false'.");
+            warn(
+                context,
+                "No 'typesVersions' field found in your package.json. Consider adding this field, or change the declaration option to 'node16' or 'false'.",
+            );
         }
     }
 };