diff --git a/libs/ml/tests/neural_net/gradient.cpp b/libs/ml/tests/neural_net/gradient.cpp
index d86a6497..6764409b 100644
--- a/libs/ml/tests/neural_net/gradient.cpp
+++ b/libs/ml/tests/neural_net/gradient.cpp
@@ -75,7 +75,7 @@ test_case(ml_neural__net_gradient)
 			nn.weights()[i] = old;
 
 			double numeric_gradient = (v1 - v0) / 2.0 / eps;
-			expect_close(numeric_gradient, learner.gradient()[i], 1e-4);
+			expect_close(numeric_gradient, learner.gradient()[i], 1e-6);
 		}
 	}
 }
@@ -122,7 +122,7 @@ test_case(ml_neural__net_arg__gradient)
 			input[i] = old;
 
 			double numeric_gradient = (v1 - v0) / 2.0 / eps;
-			expect_close(numeric_gradient, learner.arg_gradient()[i], 1e-4);
+			expect_close(numeric_gradient, learner.arg_gradient()[i], 1e-6);
 		}
 	}
 }