diff --git a/lib/gdtoa b/lib/gdtoa
index 1a6d16f1..120ed618 160000
--- a/lib/gdtoa
+++ b/lib/gdtoa
@@ -1 +1 @@
-Subproject commit 1a6d16f13a017c014c8f1f2dacd1a56f74b820b5
+Subproject commit 120ed618432939b2f372d3249230e8812c04ddc3