diff --git a/oak-upgrade/src/main/java/org/apache/jackrabbit/oak/upgrade/cli/blob/S3DataStoreFactory.java b/oak-upgrade/src/main/java/org/apache/jackrabbit/oak/upgrade/cli/blob/S3DataStoreFactory.java
index 9a0ca90731..28e80b78a0 100644
--- a/oak-upgrade/src/main/java/org/apache/jackrabbit/oak/upgrade/cli/blob/S3DataStoreFactory.java
+++ b/oak-upgrade/src/main/java/org/apache/jackrabbit/oak/upgrade/cli/blob/S3DataStoreFactory.java
@@ -28,9 +28,11 @@ import java.util.regex.Pattern;
 
 import javax.jcr.RepositoryException;
 
+import com.google.common.collect.Maps;
 import org.apache.commons.io.IOUtils;
 import org.apache.jackrabbit.core.data.DataStoreException;
 import org.apache.jackrabbit.oak.blob.cloud.s3.S3DataStore;
+import org.apache.jackrabbit.oak.commons.PropertiesUtil;
 import org.apache.jackrabbit.oak.plugins.blob.datastore.DataStoreBlobStore;
 import org.apache.jackrabbit.oak.spi.blob.BlobStore;
 
@@ -76,6 +78,8 @@ public class S3DataStoreFactory implements BlobStoreFactory {
         delegate.setProperties(props);
         delegate.setPath(directory);
 
+        PropertiesUtil.populate(delegate, Maps.fromProperties(props), false);
+
         // Initialize a default stats provider
         StatisticsProvider statsProvider = new DefaultStatisticsProvider(Executors.newSingleThreadScheduledExecutor());
         delegate.setStatisticsProvider(statsProvider);