diff --git a/lib/brolib-sml b/lib/brolib-sml
index 36edbb6..d4ef456 160000
--- a/lib/brolib-sml
+++ b/lib/brolib-sml
@@ -1 +1 @@
-Subproject commit 36edbb6dee134c90665560739dffc99c7755049b
+Subproject commit d4ef45630d35913a7677fdcde041ff67d90e04fa