diff --git a/common/nn/nn_test.go b/common/nn/nn_test.go
index 88aa69089..5a6abb70f 100644
--- a/common/nn/nn_test.go
+++ b/common/nn/nn_test.go
@@ -83,7 +83,7 @@ func TestNeuralNetwork(t *testing.T) {
 		optimizer.Step()
 		l = loss.data[0]
 	}
-	assert.InDelta(t, float64(0), l, 0.1)
+	assert.InDelta(t, float64(0), l, 0.2)
 }
 
 func iris() (*Tensor, *Tensor, error) {