diff --git a/gp/src/algorithm.rs b/gp/src/algorithm.rs
index af49745e..9512657f 100644
--- a/gp/src/algorithm.rs
+++ b/gp/src/algorithm.rs
@@ -1607,7 +1607,7 @@ mod tests {
     test_gp_variance_derivatives!(Constant, SquaredExponential, sphere, 10., 100);
     test_gp_variance_derivatives!(Linear, SquaredExponential, sphere, 10., 100);
     test_gp_variance_derivatives!(Quadratic, SquaredExponential, sphere, 10., 100);
-    test_gp_variance_derivatives!(Constant, AbsoluteExponential, norm1, 10., 100);
+    test_gp_variance_derivatives!(Constant, AbsoluteExponential, norm1, 10., 50);
     test_gp_variance_derivatives!(Linear, AbsoluteExponential, norm1, 1., 50);
     test_gp_variance_derivatives!(Quadratic, AbsoluteExponential, sphere, 10., 100);
     test_gp_variance_derivatives!(Constant, Matern32, sphere, 10., 100);