diff --git a/pom.xml b/pom.xml
index e8cba96894c..ec9035518a3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,7 +92,7 @@
             <dependency>
                 <groupId>ch.iterate.s3</groupId>
                 <artifactId>jets3t</artifactId>
-                <version>0.9.19</version>
+                <version>0.9.20</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>
diff --git a/s3/src/test/java/ch/cyberduck/core/s3/S3MultipartUploadServiceTest.java b/s3/src/test/java/ch/cyberduck/core/s3/S3MultipartUploadServiceTest.java
index e879fcc753e..92bd94f4485 100644
--- a/s3/src/test/java/ch/cyberduck/core/s3/S3MultipartUploadServiceTest.java
+++ b/s3/src/test/java/ch/cyberduck/core/s3/S3MultipartUploadServiceTest.java
@@ -41,7 +41,7 @@ public class S3MultipartUploadServiceTest extends AbstractS3Test {
     public void testUploadSinglePart() throws Exception {
         final S3MultipartUploadService service = new S3MultipartUploadService(session, new S3WriteFeature(session, new S3DisabledMultipartService()), 5 * 1024L, 2);
         final Path container = new Path("test-us-east-1-cyberduck", EnumSet.of(Path.Type.directory, Path.Type.volume));
-        final String name = UUID.randomUUID().toString() + ".txt";
+        final String name = String.format(" %s.txt", UUID.randomUUID().toString());
         final Path test = new Path(container, name, EnumSet.of(Path.Type.file));
         final Local local = new Local(System.getProperty("java.io.tmpdir"), name);
         final String random = new RandomStringGenerator.Builder().build().generate(1000);