diff --git a/Tests/Suite/Common/TestSuite.h b/Tests/Suite/Common/TestSuite.h
index 62ebfb91544207509a106c44be6190a7f517f391..eec215a2c4724a6af9881e31e688adaa917ec435 100644
--- a/Tests/Suite/Common/TestSuite.h
+++ b/Tests/Suite/Common/TestSuite.h
@@ -118,7 +118,7 @@ TEST(TESTNAME, Basic2DParacrystal)
 
 TEST(TESTNAME, HexParacrystal)
 {
-    const double eps = eps_direct_vs_python(8e-11, 2e-10);
+    const double eps = eps_direct_vs_python(1.5e-10, 2e-10);
     std::unique_ptr<const MultiLayer> sample(ExemplarySamples::createHexParacrystal());
     auto sim = test::makeSimulation::MiniGISAS(*sample);
     EXPECT_TRUE(runTest("HexParacrystal", *sim, eps));