diff --git a/bin/process_image.py b/bin/process_image.py
index a4d5532..045d2ea 100644
--- a/bin/process_image.py
+++ b/bin/process_image.py
@@ -56,7 +56,7 @@ def main():
     args = parser.parse_args()
 
     # standard test images deployed by CDK
-    image_bucket: str = f"mr-test-images-{args.account}"
+    image_bucket: str = f"osml-test-images-{args.account}"
     deployed_images: dict = {
         "small": f"s3://{image_bucket}/small.tif",
         "large": f"s3://{image_bucket}/large.tif",
diff --git a/src/aws/osml/utils/osml_config.py b/src/aws/osml/utils/osml_config.py
index 265ea95..82a817a 100644
--- a/src/aws/osml/utils/osml_config.py
+++ b/src/aws/osml/utils/osml_config.py
@@ -33,12 +33,12 @@ class OSMLConfig:
 
     # bucket name prefixes
     S3_RESULTS_BUCKET: str = os.getenv("S3_RESULTS_BUCKET")
-    S3_RESULTS_BUCKET_PREFIX: str = os.getenv("S3_RESULTS_BUCKET_PREFIX", "mr-test-results")
-    S3_IMAGE_BUCKET_PREFIX: str = os.getenv("S3_IMAGE_BUCKET_PREFIX", "mr-test-images")
+    S3_RESULTS_BUCKET_PREFIX: str = os.getenv("S3_RESULTS_BUCKET_PREFIX", "mr-bucket-sink")
+    S3_IMAGE_BUCKET_PREFIX: str = os.getenv("S3_IMAGE_BUCKET_PREFIX", "osml-test-images")
 
     # stream name prefixes
     KINESIS_RESULTS_STREAM: str = os.getenv("KINESIS_RESULTS_STREAM")
-    KINESIS_RESULTS_STREAM_PREFIX: str = os.getenv("KINESIS_RESULTS_STREAM_PREFIX", "mr-test-stream")
+    KINESIS_RESULTS_STREAM_PREFIX: str = os.getenv("KINESIS_RESULTS_STREAM_PREFIX", "mr-stream-sink")
 
     # deployment info
     ACCOUNT: str = os.environ.get("ACCOUNT")