diff --git a/utils/utils.py b/utils/utils.py
index 805f5799..1ded9eae 100755
--- a/utils/utils.py
+++ b/utils/utils.py
@@ -511,8 +511,8 @@ def non_max_suppression(prediction, conf_thres=0.5, nms_thres=0.5):
             if n == 1:
                 det_max.append(dc)  # No NMS required if only 1 prediction
                 continue
-            elif n > 100:
-                dc = dc[:100]  # limit to first 100 boxes: https://github.com/ultralytics/yolov3/issues/117
+            elif n > 500:
+                dc = dc[:500]  # limit to first 100 boxes: https://github.com/ultralytics/yolov3/issues/117
 
             # Non-maximum suppression
             if nms_style == 'OR':  # default