diff --git a/deploy/hubserving/ocr_det/params.py b/deploy/hubserving/ocr_det/params.py
index 3a310e0b523af7ebc124382761c443ef6c4cbf0c..c4aa13817f2dadb8225ec0112415094cce5165ad 100755
--- a/deploy/hubserving/ocr_det/params.py
+++ b/deploy/hubserving/ocr_det/params.py
@@ -32,8 +32,8 @@ def read_params():
 
     #DB parmas
     cfg.det_db_thresh = 0.3
-    cfg.det_db_box_thresh = 0.5
-    cfg.det_db_unclip_ratio = 1.6
+    cfg.det_db_box_thresh = 0.6
+    cfg.det_db_unclip_ratio = 1.5
     cfg.use_dilation = False
     cfg.det_db_score_mode = "fast"