diff --git a/infrastructure/terraform/components/dl/module_lambda_pdm_uploader.tf b/infrastructure/terraform/components/dl/module_lambda_pdm_uploader.tf
index 6c4f7e8a4..f9181e330 100644
--- a/infrastructure/terraform/components/dl/module_lambda_pdm_uploader.tf
+++ b/infrastructure/terraform/components/dl/module_lambda_pdm_uploader.tf
@@ -24,7 +24,7 @@ module "pdm_uploader" {
   function_include_common = true
   handler_function_name   = "handler"
   runtime                 = "nodejs22.x"
-  memory                  = 256
+  memory                  = 512
   timeout                 = var.lambda_timeout_seconds
   log_level               = var.log_level
 
diff --git a/utils/utils/src/s3-utils/get-object-s3.ts b/utils/utils/src/s3-utils/get-object-s3.ts
index 8d541ed3f..c66d130a6 100644
--- a/utils/utils/src/s3-utils/get-object-s3.ts
+++ b/utils/utils/src/s3-utils/get-object-s3.ts
@@ -1,4 +1,5 @@
 import { type Readable } from 'node:stream';
+import { StringDecoder } from 'node:string_decoder';
 import {
   GetObjectCommand,
   GetObjectCommandOutput,
@@ -36,12 +37,13 @@ export interface S3Location {
 
 async function streamToString(Body: Readable) {
   return new Promise<string>((resolve, reject) => {
-    const chunks: Buffer[] = [];
-    Body.on('data', (chunk: ArrayBuffer | SharedArrayBuffer) =>
-      chunks.push(Buffer.from(chunk)),
-    );
+    const decoder = new StringDecoder('utf8');
+    let result = '';
+    Body.on('data', (chunk: Buffer) => {
+      result += decoder.write(chunk);
+    });
     Body.on('error', (err) => reject(err));
-    Body.on('end', () => resolve(Buffer.concat(chunks).toString('utf8')));
+    Body.on('end', () => resolve(result + decoder.end()));
   });
 }