diff --git a/Build.PL b/Build.PL
index c44c50842..4b8ad7eff 100644
--- a/Build.PL
+++ b/Build.PL
@@ -12,7 +12,7 @@ my $build = Module::Build->new(
         'File::Basename'            => '0',
         'File::Spec'                => '0',
         'Getopt::Long'              => '0',
-        'Math::Clipper'             => '1.17',
+        'Math::Clipper'             => '1.18',
         'Math::ConvexHull::MonotoneChain' => '0.01',
         'Math::Geometry::Voronoi'   => '1.3',
         'Math::PlanePath'           => '53',