diff --git a/test/boxopt_test.cpp b/test/boxopt_test.cpp
index b54ae17..36ea579 100644
--- a/test/boxopt_test.cpp
+++ b/test/boxopt_test.cpp
@@ -23,15 +23,15 @@ TEST(BoxOptTest, BasicAssertions) {
   constexpr auto fsoft = [](auto x) {
     auto u0 = x[0];
     auto u1 = x[1];
-    return fcore(u0, u1) + 0.125 * poly::math::softplus(8.0 * gcore(u0, u1));
+    return fcore(u0, u1) + 0.25 * poly::math::softplus(8.0 * gcore(u0, u1));
   };
   poly::utils::OwningArena<> arena;
   double opt0 = poly::math::minimize(&arena, box, fsoft);
   double u0 = box.transformed()[0];
   double u1 = box.transformed()[1];
   std::cout << "u0 = " << u0 << "; u1 = " << u1 << '\n';
-  EXPECT_LT(std::abs(3.4567 - u0), 1e-3);
-  EXPECT_LT(std::abs(7.8 - u1), 1e-3);
+  EXPECT_LT(std::abs(3.45128 - u0), 1e-3);
+  EXPECT_LT(std::abs(7.78878 - u1), 1e-3);
   box.decreaseUpperBound(0, 3);
   double opt1 = poly::math::minimize(&arena, box, fsoft);
   EXPECT_LT(opt0, opt1);
@@ -39,7 +39,7 @@ TEST(BoxOptTest, BasicAssertions) {
   double u11 = box.transformed()[1];
   std::cout << "u01 = " << u01 << "; u11 = " << u11 << '\n';
   EXPECT_EQ(u01, 3.0);
-  EXPECT_LT(std::abs(9.132 - u11), 1e-3);
+  EXPECT_LT(std::abs(9.10293 - u11), 1e-3);
 
   poly::math::Vector<int32_t> r{0, 0};
   double opti = poly::math::minimizeIntSol(&arena, r, 1, 32, fsoft);