diff --git a/src/test/java/org/janelia/saalfeldlab/n5/s3/AmazonS3UtilsTest.java b/src/test/java/org/janelia/saalfeldlab/n5/s3/AmazonS3UtilsTest.java
index 63e278c..f66afde 100644
--- a/src/test/java/org/janelia/saalfeldlab/n5/s3/AmazonS3UtilsTest.java
+++ b/src/test/java/org/janelia/saalfeldlab/n5/s3/AmazonS3UtilsTest.java
@@ -10,6 +10,9 @@
 
 import org.junit.Test;
 
+import com.amazonaws.auth.AWSStaticCredentialsProvider;
+import com.amazonaws.auth.AnonymousAWSCredentials;
+
 public class AmazonS3UtilsTest {
 
 	@Test
@@ -38,7 +41,10 @@ public void testUriParsing() throws URISyntaxException {
 					final URI uri = new URI(uriString);
 					assertEquals("bucket from uri", bucket, AmazonS3Utils.getS3Bucket(uri));
 					assertEquals("key from uri", path, AmazonS3Utils.getS3Key(uri));
-					AmazonS3Utils.createS3(uriString);
+					AmazonS3Utils.createS3(uriString,
+							null,
+							new AWSStaticCredentialsProvider(new AnonymousAWSCredentials()),
+							null);
 				}
 
 	}