diff --git a/tests/testBox.cc b/tests/testBox.cc
index 08ddfba..4332ccb 100644
--- a/tests/testBox.cc
+++ b/tests/testBox.cc
@@ -385,14 +385,14 @@ TEST_CASE(Box3dBounds) {
     b = Box::fromRadians(0.25 * PI, -0.25 * PI, 1.25 * PI, 0.25 * PI);
     bb = b.getBoundingBox3d();
     CHECK(bb.x().getA() == -1);
-    CHECK(bb.x().getB() >= 0.5 * std::sqrt(2.0));
+    CHECK(bb.x().getB() >= 0.5 * std::sqrt(2.0) - TOLERANCE);
     CHECK(bb.x().getB() <= 0.5 * std::sqrt(2.0) + TOLERANCE);
     CHECK(bb.y().getA() >= -0.5 * std::sqrt(2.0) - TOLERANCE);
-    CHECK(bb.y().getA() <= -0.5 * std::sqrt(2.0));
+    CHECK(bb.y().getA() <= -0.5 * std::sqrt(2.0) + TOLERANCE);
     CHECK(bb.y().getB() == 1);
     CHECK(bb.z().getA() >= -0.5 * std::sqrt(2.0) - TOLERANCE);
-    CHECK(bb.z().getA() <= -0.5 * std::sqrt(2.0));
-    CHECK(bb.z().getB() >= 0.5 * std::sqrt(2.0));
+    CHECK(bb.z().getA() <= -0.5 * std::sqrt(2.0) + TOLERANCE);
+    CHECK(bb.z().getB() >= 0.5 * std::sqrt(2.0) - TOLERANCE);
     CHECK(bb.z().getB() <= 0.5 * std::sqrt(2.0) + TOLERANCE);
 }