diff --git a/subprojects/libsys4 b/subprojects/libsys4
index 95ce167a..481581b3 160000
--- a/subprojects/libsys4
+++ b/subprojects/libsys4
@@ -1 +1 @@
-Subproject commit 95ce167a93fcc3348431583d2f7f0b3637b12f79
+Subproject commit 481581b3b5833ec676d0578a044fa7c54b421089