diff --git a/onnxruntime/test/onnx/main.cc b/onnxruntime/test/onnx/main.cc
index 283422ad98..6b89f869db 100644
--- a/onnxruntime/test/onnx/main.cc
+++ b/onnxruntime/test/onnx/main.cc
@@ -308,7 +308,6 @@ int real_main(int argc, char* argv[]) {
       {"asinh_example", "opset 9 not supported yet"},
       {"acosh_example", "opset 9 not supported yet"},
       {"atanh_example", "opset 9 not supported yet"},
-      {"sign_model", "opset 9 not supported yet"},
       {"scatter_with_axis", "opset 9 not supported yet"},
       {"scatter_without_axis", "opset 9 not supported yet"},
       {"scan_sum", "opset 9 not supported yet"},
diff --git a/onnxruntime/test/python/onnx_backend_test_series.py b/onnxruntime/test/python/onnx_backend_test_series.py
index 4a1ab81dfe..2ce3f986ec 100644
--- a/onnxruntime/test/python/onnx_backend_test_series.py
+++ b/onnxruntime/test/python/onnx_backend_test_series.py
@@ -63,7 +63,6 @@ backend_test.exclude(r'('
 '|^test_operator_params_cpu.*'
 '|^test_operator_pow_cpu.*'
 '|^test_shrink_cpu.*'
-'|^test_sign_model_cpu.*'
 ')')
 
 # import all test cases at global scope to make