diff --git a/lib/geant4 b/lib/geant4
index e7827c9..71c7582 160000
--- a/lib/geant4
+++ b/lib/geant4
@@ -1 +1 @@
-Subproject commit e7827c9b07aa6788f37e70658302945d6f129c70
+Subproject commit 71c7582c45c8b7624ef7be16288349c056b1a6dd