diff --git a/src/tim/vx/ops/activations_test.cc b/src/tim/vx/ops/activations_test.cc
index 9ef43ed..553cd02 100644
--- a/src/tim/vx/ops/activations_test.cc
+++ b/src/tim/vx/ops/activations_test.cc
@@ -457,4 +457,48 @@ TEST(SoftSign, shape_5_1_fp32) {
   std::vector<float> output(5, 0);
   EXPECT_TRUE(output_tensor->CopyDataFromTensor(output.data()));
   EXPECT_TRUE(ArraysMatch(golden, output, 1e-5f));
+}
+
+TEST(HardSwish, 40_f32) {
+  auto ctx = tim::vx::Context::Create();
+  auto graph = ctx->CreateGraph();
+
+  tim::vx::ShapeType io_shape({40});
+  tim::vx::TensorSpec input_spec(tim::vx::DataType::FLOAT32, io_shape,
+                                 tim::vx::TensorAttribute::INPUT);
+  tim::vx::TensorSpec output_spec(tim::vx::DataType::FLOAT32, io_shape,
+                                  tim::vx::TensorAttribute::OUTPUT);
+
+  auto input_tensor = graph->CreateTensor(input_spec);
+  auto output_tensor = graph->CreateTensor(output_spec);
+
+  std::vector<float> in_data = {
+      4.53125f,   3.90625f,   3.046875f,  -8.59375f,  -1.328125f, 1.328125f,
+      0.0f,       -8.515625f, -8.984375f, -0.234375f, 0.859375f,  9.84375f,
+      -0.15625f,  -8.515625f, 8.671875f,  4.609375f,  9.21875f,   -1.796875f,
+      1.171875f,  9.375f,     -8.75f,     2.421875f,  -8.125f,    -1.09375f,
+      -9.609375f, -1.015625f, -9.84375f,  2.578125f,  4.921875f,  -5.078125f,
+      5.0f,       -0.859375f, 1.953125f,  -6.640625f, -7.8125f,   4.453125f,
+      -4.453125f, -6.875f,    0.78125f,   0.859375f};
+  std::vector<float> golden = {
+      4.53125f,    3.90625f,    3.046875f,   0.0f,        -0.3700765f,
+      0.9580485f,  0.0f,        0.0f,        0.0f,        -0.1080322f,
+      0.5527751f,  9.84375f,    -0.074056f,  0.0f,        8.671875f,
+      4.609375f,   9.21875f,    -0.3603109f, 0.8148193f,  9.375f,
+      0.0f,        2.1885173f,  0.0f,        -0.3474935f, 0.0f,
+      -0.3358968f, 0.0f,        2.3968506f,  4.921875f,   0.0f,
+      5.0f,        -0.3065999f, 1.6123454f,  0.0f,        0.0f,
+      4.453125f,   0.0f,        0.0f,        0.4923503f,  0.5527751f};
+
+  EXPECT_TRUE(
+      input_tensor->CopyDataToTensor(in_data.data(), in_data.size() * 4));
+
+  auto op = graph->CreateOperation<tim::vx::ops::HardSwish>();
+  (*op).BindInputs({input_tensor}).BindOutputs({output_tensor});
+
+  EXPECT_TRUE(graph->Compile());
+  EXPECT_TRUE(graph->Run());
+  std::vector<float> output(40);
+  EXPECT_TRUE(output_tensor->CopyDataFromTensor(output.data()));
+  EXPECT_TRUE(ArraysMatch(golden, output, 1e-5f));
 }
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