diff --git a/external/mx25519 b/external/mx25519
index 84ca129..42f36ed 160000
--- a/external/mx25519
+++ b/external/mx25519
@@ -1 +1 @@
-Subproject commit 84ca1290fa344351c95692f20f41a174b70e0c7b
+Subproject commit 42f36ede5fee5e420422c1745ae94b46cd59a949