diff --git a/lampi-siirtaja-container/lampi-siirtaja/package-lock.json b/lampi-siirtaja-container/lampi-siirtaja/package-lock.json
index 8b8513e4..3a37901b 100644
--- a/lampi-siirtaja-container/lampi-siirtaja/package-lock.json
+++ b/lampi-siirtaja-container/lampi-siirtaja/package-lock.json
@@ -10,6 +10,7 @@
       "license": "ISC",
       "dependencies": {
         "@aws-sdk/client-s3": "^3.715.0",
+        "@smithy/types": "^3.7.2",
         "bindings": "^1.5.0",
         "file-uri-to-path": "^1.0.0",
         "libpq": "^1.8.13",
diff --git a/lampi-siirtaja-container/lampi-siirtaja/package.json b/lampi-siirtaja-container/lampi-siirtaja/package.json
index 02218011..acfb58a0 100644
--- a/lampi-siirtaja-container/lampi-siirtaja/package.json
+++ b/lampi-siirtaja-container/lampi-siirtaja/package.json
@@ -4,6 +4,7 @@
   "main": "dist/run.js",
   "dependencies": {
     "@aws-sdk/client-s3": "^3.715.0",
+    "@smithy/types": "^3.7.2",
     "bindings": "^1.5.0",
     "file-uri-to-path": "^1.0.0",
     "libpq": "^1.8.13",
diff --git a/lampi-siirtaja-container/lampi-siirtaja/src/run.ts b/lampi-siirtaja-container/lampi-siirtaja/src/run.ts
index caf7075a..30f3ed0d 100644
--- a/lampi-siirtaja-container/lampi-siirtaja/src/run.ts
+++ b/lampi-siirtaja-container/lampi-siirtaja/src/run.ts
@@ -1,11 +1,12 @@
 import PgClient from 'pg-native';
-
+import { NodeJsClient } from "@smithy/types";
 import {
   S3Client,
   CopyObjectCommand,
   ObjectNotInActiveTierError,
   waitUntilObjectExists, GetObjectCommand, GetObjectCommandOutput, PutObjectCommand, PutObjectCommandOutput,
 } from '@aws-sdk/client-s3';
+import { Readable } from 'node:stream';
 
 const dbHost = process.env.POSTGRES_HOST;
 const dbUsername = process.env.DB_USERNAME;
@@ -62,8 +63,8 @@ const copyTableToS3 = (schemaName: string, tableName: string) => {
 }
 
 const copyFileToLampi = async (sourceKey: string): Promise<ManifestItem> => {
-  const ovaraS3Client: S3Client = new S3Client({});
-  const lampiS3Client: S3Client = new S3Client({});
+  const ovaraS3Client: S3Client = new S3Client({}) as NodeJsClient<S3Client>;
+  const lampiS3Client: S3Client = new S3Client({}) as NodeJsClient<S3Client>;
   const destinationKey = sourceKey;
 
   const getObjectCommandOutput: GetObjectCommandOutput = await ovaraS3Client.send(
@@ -73,13 +74,15 @@ const copyFileToLampi = async (sourceKey: string): Promise<ManifestItem> => {
     }),
   );
 
-  const bodyString: string = await getObjectCommandOutput.Body.transformToString();
+  //const bodyString: string = await getObjectCommandOutput.Body.transformToString();
 
   const putObjectCommandOutput: PutObjectCommandOutput = await lampiS3Client.send(
     new PutObjectCommand({
       Bucket: lampiS3Bucket,
       Key: destinationKey,
-      Body: bodyString
+      Body: getObjectCommandOutput.Body,
+      ContentLength: getObjectCommandOutput.ContentLength
+      //Body: bodyString
     })
   );