diff --git a/cli/src/build.ts b/cli/src/build.ts
index 20cc1c04..ce250279 100644
--- a/cli/src/build.ts
+++ b/cli/src/build.ts
@@ -8,7 +8,7 @@ import toml from 'toml'
 import { getNapiConfig } from './consts'
 import { debugFactory } from './debug'
 import { getDefaultTargetTriple, parseTriple } from './parse-triple'
-import { existsAsync, readFileAsync, writeFileAsync } from './utils'
+import { copyFileAsync, existsAsync, readFileAsync, unlinkAsync } from './utils'
 
 const debug = debugFactory('build')
 
@@ -173,13 +173,14 @@ export class BuildCommand extends Command {
     }
 
     const sourcePath = join(dir, 'target', targetDir, `${dylibName}${libExt}`)
-    debug(`Read [${chalk.yellowBright(sourcePath)}] content`)
 
-    const dylibContent = await readFileAsync(sourcePath)
+    if (await existsAsync(distModulePath)) {
+      debug(`remove old binary [${chalk.yellowBright(sourcePath)}]`)
+      await unlinkAsync(distModulePath)
+    }
 
     debug(`Write binary content to [${chalk.yellowBright(distModulePath)}]`)
-
-    await writeFileAsync(distModulePath, dylibContent)
+    await copyFileAsync(sourcePath, distModulePath)
   }
 }
 
diff --git a/cli/src/utils.ts b/cli/src/utils.ts
index eaa547e9..553f2d20 100644
--- a/cli/src/utils.ts
+++ b/cli/src/utils.ts
@@ -1,6 +1,8 @@
-import { readFile, writeFile, exists } from 'fs'
+import { readFile, writeFile, exists, copyFile, unlink } from 'fs'
 import { promisify } from 'util'
 
 export const readFileAsync = promisify(readFile)
 export const writeFileAsync = promisify(writeFile)
 export const existsAsync = promisify(exists)
+export const unlinkAsync = promisify(unlink)
+export const copyFileAsync = promisify(copyFile)