diff --git a/npm/ng-packs/scripts/build.js b/npm/ng-packs/scripts/build.js
index 6b21c48e0f..ddd5de2663 100644
--- a/npm/ng-packs/scripts/build.js
+++ b/npm/ng-packs/scripts/build.js
@@ -35,4 +35,6 @@ import fse from 'fs-extra';
       cwd: '../',
     });
   });
+
+  process.exit(0);
 })();
diff --git a/npm/ng-packs/scripts/sync.js b/npm/ng-packs/scripts/sync.js
index 366057bf8e..a212995cb3 100644
--- a/npm/ng-packs/scripts/sync.js
+++ b/npm/ng-packs/scripts/sync.js
@@ -1,5 +1,4 @@
 // ESM syntax is supported.
-import execa from 'execa';
 import fse from 'fs-extra';
 
 (async () => {
@@ -21,4 +20,6 @@ import fse from 'fs-extra';
 
     await fse.writeJSON(srcPackagePath, { ...srcPackage, version }, { spaces: 2 });
   });
+
+  process.exit(0);
 })();