diff --git a/inference/python_api_test/test_ocr_model/test_ocr_det_mv3_db_trt_fp32.py b/inference/python_api_test/test_ocr_model/test_ocr_det_mv3_db_trt_fp32.py
index 88b0670738..6bbaddb871 100644
--- a/inference/python_api_test/test_ocr_model/test_ocr_det_mv3_db_trt_fp32.py
+++ b/inference/python_api_test/test_ocr_model/test_ocr_det_mv3_db_trt_fp32.py
@@ -137,7 +137,7 @@ def test_trt_fp32_bz1_dynamic_multi_thread():
         gpu_mem=5000,
         max_batch_size=max_batch_size,
         repeat=1,
-        delta=2e-5,
+        delta=3e-5,
         names=names,
         min_input_shape=min_input_shape,
         max_input_shape=max_input_shape,
@@ -243,7 +243,7 @@ def test_trtfp32_more_bz_dynamic_bz():
             output_data_dict,
             max_batch_size=max_batch_size,
             repeat=1,
-            delta=2e-5,
+            delta=3e-5,
             names=names,
             min_input_shape=min_input_shape,
             max_input_shape=max_input_shape,
@@ -348,7 +348,7 @@ def test_jetson_trtfp32_more_bz_dynamic_bz():
             output_data_dict,
             max_batch_size=max_batch_size,
             repeat=1,
-            delta=2e-5,
+            delta=3e-5,
             names=names,
             min_input_shape=min_input_shape,
             max_input_shape=max_input_shape,