diff --git a/scripts/optimize-images.ts b/scripts/optimize-images.ts
index 9151bf8e..aa543efc 100644
--- a/scripts/optimize-images.ts
+++ b/scripts/optimize-images.ts
@@ -38,8 +38,8 @@ export async function optimizeImages() {
   const imagePaths = await getFilePathsInDirectory(SOURCE_DIRECTORY);
   await fse.emptyDir(DESTINATION_DIRECTORY);
 
-  // maximum number of workers is 8 in order to avoid running out of memory
-  const numberOfWorkers = Math.min(cpus().length, 8);
+  // maximum number of workers is 4 in order to avoid running out of memory
+  const numberOfWorkers = Math.min(cpus().length, 4);
   const imagePool = new ImagePool(numberOfWorkers);
 
   await Promise.all(