diff --git a/preprocessor_config.json b/preprocessor_config.json
index 6ff682d..67e982c 100644
--- a/preprocessor_config.json
+++ b/preprocessor_config.json
@@ -1,7 +1,7 @@
 {
   "do_normalize": true,
   "do_resize": true,
-  "feature_extractor_type": "DetrFeatureExtractor",
+  "feature_extractor_type": "DeformableDetrFeatureExtractor",
   "format": "coco_detection",
   "image_mean": [
     0.485,