diff --git a/ext/glm b/ext/glm
index 2929ad5..da9a21d 160000
--- a/ext/glm
+++ b/ext/glm
@@ -1 +1 @@
-Subproject commit 2929ad5a663597139276c10ef905d91e568fdc48
+Subproject commit da9a21d7e3a2a3a32354a7d9da362d5738b113b6